Workshops also produce and sell '''custom magazines and feeding devices''', for when the weapons produced at Customs necesitate a magazine or other feeding device which does not already exist on the market. A full event line list can be found at the bottom of this page.

* Each workshop has '''5 of each custom feeding device''' for sale.

This semi-automatic pistol platform is based on the well-known 1911 design, which is most well known in its original iteration, the [[Colt M1911A1]] in .45 ACP. 1911SS pistols use a slim profile, a 5 inch barrel, and single-stack magazines. Though this platform may not be the most advanced or tactical, 1911SS pistols are praised for their high durability and reliability, ease of use, and ease of maintenance, and are primarily intended for people looking for the most dependable handguns possible.

* [[9x19mm Parabellum]] (Custom 1911SS 9mm magazines, capacity 9 rounds)

* [[9x25mm Dillon]] (Colt Delta Elite magazines'''^/!\3''')

Note: All "Custom" magazines for 1911SS pistols weigh 0.25 units empty (Size tier: Tiny).<br/>  

'''^/!\''': 1911SS pistols chambered in .40 S&W can re-use the 1911 Fastback Nightmare's magazines, as .40 S&W and .357 SIG have the same base diameter, however be careful to note that .40 S&W pistols cannot shoot .357 SIG and vice versa. A warning will be given if your Contestant is trying to load the wrong type of ammunition in his/her firearm.<br/>

'''Optics rail'''

* The frame is drilled and tapped, then mounted with an optics rail which sits above the slide, for mounting optics of the user's choice without losing the option to return to iron sights if desired. This installs a '''NATO-S optic mount''' on the weapon.

 

** Stock type: S (Fixed) stock, allowing it to be shouldered.

Operating on the same principle as the 1911SS platform, 1911DS are also semi-automatic pistols based on the 1911 design with the same barrel length of 5 inches, but this variant had to be differentiated due to their larger profile, allowing the use of larger magazines. Durable and reliable, though not as much as their 1911SS equivalents, the double stack platform more than makes up with nearly double standard magazine capacity.

* [[7.62x25mm Tokarev]] (Custom 1911DS Tokarev magazines, capacity 20 rounds)

Note: All "Custom" magazines for 1911DS pistols weigh 0.5 units empty (Size tier: Small).<br/>  

'''^/!\''': 1911DS pistols chambered in .357 SIG can re-use the Para P-16's magazines, as .40 S&W and .357 SIG have the same base diameter, however be careful to note that .40 S&W pistols cannot shoot .357 SIG and vice versa. A warning will be given if your Contestant is trying to load the wrong type of ammunition in his/her firearm.<br/>

'''^/!\3''': 1911DS pistols chambered in 9mm Dillon can re-use the Custom 1911DS 10mm magazines, as 10mm Auto and 9x25mm Dillon have the same base diameter, however be careful to note that 10mm pistols cannot shoot 9mm Dillon and vice versa. A warning will be given if your Contestant is trying to load the wrong type of ammunition in his/her firearm.

'''Optics rail'''

* The frame is drilled and tapped, then mounted with an optics rail which sits above the slide, for mounting optics of the user's choice without losing the option to return to iron sights if desired. This installs a '''NATO-S optic mount''' on the weapon.

 

** Combat skills: Now calls for relevant Rifle skills instead of Pistol skills.

 

'''Railed frame''': The old frame is removed, replaced with a newer one with an accessory rail. Adds '''a Small light mount''' to the weapon.

* [[.44 Magnum]]/[[.44 Special]] or [[.44 Special]] alone (6 rounds)

* [[.30 Carbine]] (5, 6, 7 rounds)

* [[.38 Special]]/[[.357 Magnum]] or [[.38 Special]] alone (5, 6, 7, 8 rounds)

* [[.380 ACP]] (5, 6, 7, 8 rounds)

* [[.40 S＆W]] (5, 6, 7 rounds)

* [[.44 Magnum]]/[[.44 Special]] or [[.44 Special]] alone (5 rounds)

* [[.45 ACP]] (5, 6 rounds)

* [[.460 Rowland]] (5, 6 rounds)

* [[.45 Colt]]/[[.454 Casull]] or [[.45 Colt]] alone (5, 6 rounds)

* [[9x18mm Makarov]] (5, 6, 7, 8 rounds)

* [[9x19mm Parabellum]] (5, 6, 7, 8 rounds)

* [[10mm Auto]] (5, 6, 7 rounds)

* [[.22 Long Rifle]] (6, 8, 10 rounds)

 

Every possible combination of non-standard caliber and cylinder size has a corresponding speed strip with the relevant capacity.<br/>

* ''Blackhawk'' configuration: 7.5 inch barrel. Changes the weapon weight to 5 units. (Standard on Ruger Blackhawk and Super Blackhawk)

* ''Long barrel'' configuration: 10.5 inch barrel. Changes the weapon weight to 5 units.

** Compatible only with ''Blackhawk'' and ''Long barrel'' configurations.

=== Weight combinations (Blackhawk) ===

= Redhawk =

The Redhawk family is a platform of revolvers, based on the Ruger Redhawk and its variants. Where the Blackhawks are the single-action cousins, the Redhawks are double-action. Redhawks may not have the extreme durability and reliability of their SA cousins, but they make up for it by having the same diverse selection of rechambering options, and of course, the main traits of a DA revolver: faster reloads and faster follow-up shots.

* [[Ruger Redhawk]]

* [[Ruger Super Redhawk]]

 

 

=== Rechambering (Redhawk) ===

* [[.454 Casull]]/[[.45 Colt]], or [[.45 Colt]] alone (6 rounds)

 

* '''RL''' [[.30 Carbine]] (5, 6, 7, 8 rounds)

* [[.38 Special]]/[[.357 Magnum]], or [[.38 Special]] alone (5, 6, 7, 8 rounds)

* '''RL''' [[.380 ACP]] (5, 6, 7, 8 rounds)

* '''RL''' [[ .40 S＆W]]/[[10mm Auto]] (5, 6, 7 rounds)

* [[.44 Magnum]]/[[.44 Special]] or [[.44 Special]] alone (5, 6 rounds)

* '''RL''' [[.45 ACP]]/[[.460 Rowland]] ''(+ .454 Casull/.45 Colt or .45 Colt alone)'' (5, 6 rounds)

* [[.454 Casull]]/[[.45 Colt]] or [[.45 Colt]] alone (5 rounds)

* '''RL''' [[9x18mm Makarov]] (5, 6, 7, 8 rounds)

* '''RL''' [[9x19mm Parabellum]] (5, 6, 7, 8 rounds)

* [[.22 Long Rifle]] (6, 8, 10 rounds)

Certain options in the list above are preceded with a '''RL''': this denotes the calibers listed are '''r'''im'''l'''ess, and the cylinder is cut to accept '''moonclips''', which will be supplied instead of speedloaders. Calibers listed between parentheses indicate that if a moonclip isn't inserted into the cylinder, the gun can still accept ammunition of the listed calibers (which are ''rimmed''). If a choice is presented, the customer will be asked which he/she prefers at no extra charge.

* The only practical difference between a speedloader and a moonclip is that a moonclip is inserted into the gun (like a magazine in a semi-automatic), while a speedloader empties the rounds it holds into the gun then returns to the inventory. Keep this in mind for inventory management.

 

Example: A Redhawk customized with a 6-round .30 Carbine cylinder can be supplied with moonclips named: "Custom .30 Carbine 6-round moonclip".<br/>

=== Barrel (Redhawk) ===

* ''Alaskan'' configuration: 2.5 inch barrel. Changes the weapon weight to 2 units. (Standard on Ruger Super Redhawk Alaskan)

* ''Combat'' configuration: 4.22 inch barrel. Changes the weapon weight to 3 units.

* ''Redhawk'' configuration: 7.5 inch barrel. Changes the weapon weight to 5 units. (Standard on Ruger Redhawk and Super Redhawk)

* ''Long barrel'' configuration: 9.5 inch barrel. Changes the weapon weight to 5 units, enables compatibility with the Redhawk Sniper option (see below).

=== Handgun optics (Redhawk) ===

'''Redhawk Sniper'''

=== Other modifications (Redhawk) ===

 

The Glock family of semi-automatic handguns is represented in the Maze Customs in two distinct families: Glock Short Frame (Glock-SF) and Glock Large Frame (Glock-LF). At the exception of the compact-size, straight blowback [[Glock 25]] and the so-called subcompacts or "Baby Glocks" (models 26, 27, 28, 29, 30, and 33), all of the full-size Glocks in the Mazes are found in those two families. Reputed for being lightweight, sturdy pistols with exceptional resistance to abuse, the capacity to function even in the direst of environments, they are part of the Customs family as the semi-automatic pistol platform which may receive an extreme variety of modifications, up and including to the highly popular, [[Glock 18C|Glock 18]]-derived auto sear, which allows the weapon to function as a machine pistol.

The Glock Short Frame family is named as such because it designates Glock pistols built on the frame and slide size specifications of the original [[Glock 17]], chambered in 9x19mm and with a 4.48 inch barrel.

* [[.357 SIG]] (Glock .40/.357 15-round magazines '''^/!\''') (Custom Glock .40/.357 30-round magazines)

* [[.40 S＆W]] (Glock .40/.357 15-round magazines '''^/!\''') (Custom Glock .40/.357 30-round magazines)

* [[9x18mm Makarov]] (Custom Glock-Mak magazines, capacity 17 and 33 rounds)

Note: All "Custom" magazines for Glock-SF pistols weigh 0.5 units empty (Size tier: Small).<br/>

'''^/!\''': Glock-SF pistols chambered in .357 SIG or .40 S&W use the same magazines, as .40 S&W and .357 SIG have the same base diameter, however be careful to note that .40 S&W pistols cannot shoot .357 SIG and vice versa. A warning will be given if your Contestant is trying to load the wrong type of ammunition in his/her firearm.<br/>

'''^/!\2''': Custom Glock .380 magazines are compatible with the Glock 25, but the original Glock 25 magazines are not compatible with any Glock-SF chambered in .380 ACP ; they are too short and simply do not fit.

** WARNING: If your barrel is ported, mounting a silencer remains possible but '''rendered useless''' - stealth shots are impossible with a ported barrel (the firearm is too loud).

 

* ''Full-size'' configuration: 4.48 inch barrel mated to a standard sized slide. (Stock on Glock 17, Glock 18C, Glock 22, Glock 31)

* ''Competition'' configuration: 9 inch barrel mated to a 17L sized slide. Ideal for competition or hunting.

* If the weapon is equipped with both a Semi/Full selector switch and a Glock Stock, it is considered to be a '''Submachine gun'''.

* If the weapon is equipped with a Semi/Full selector switch alone, it is considered to be an '''Auto pistol'''.

* If the weapon is equipped with a Glock Stock alone, it is considered to be a '''Conventional rifle'''.

The Glock family of semi-automatic handguns is represented in the Maze Customs in two distinct families: Glock Short Frame (Glock-SF) and Glock Large Frame (Glock-LF). At the exception of the straight blowback [[Glock 25]] and the so-called subcompacts or "Baby Glocks" (models 26, 27, 28, 29, 30, and 33), all of the full-size Glocks in the Mazes are found in those two families. Reputed for being lightweight, sturdy pistols with exceptional resistance to abuse, the capacity to function even in the direst of environments, they are part of the Customs family as the semi-automatic pistol platform which may receive an extreme variety of modifications, up and including to the highly popular, [[Glock 18C|Glock 18]]-derived auto sear, which allows the weapon to function as a machine pistol.

The Glock Large Frame family is named as such because it designates Glock pistols built on the frame and slide size specifications of the [[Glock 20]], with a 4.6 inch barrel, specially designed to accomodate for the long 10mm Auto cartridge. From the Glock 20 was derived the [[Glock 21]], its .45 ACP variant, because the .45 ACP cartridge was unsuitable for use in the Small Frame platform. As such, the Glock-LF is tailored for longer pistol cartridges, and larger calibers.

* [[.45 ACP]] (Glock .45 magazines)

* [[10mm Auto]] (Glock 10mm magazines)

 

Note: All "Custom" magazines for Glock-LF pistols weigh 0.5 units empty (Size tier: Small).<br/>

 

* ''Full-size'' configuration: 4.6 inch barrel mated to a standard sized slide. (Stock on Glock 20, Glock 21)

* ''Competition'' configuration: 9 inch barrel mated to a 17L sized slide. Ideal for competition or hunting.

* If the weapon is equipped with both a Semi/Full selector switch and a Glock Stock, it is considered to be a '''Submachine gun'''.

* If the weapon is equipped with a Semi/Full selector switch alone, it is considered to be an '''Auto pistol'''.

* If the weapon is equipped with a Glock Stock alone, it is considered to be a '''Conventional rifle'''.

As the fan favorite submachine gun family in the Mazes, loved and favored by many, the MP5 is available in the Customs as the full-size submachine gun platform, with all of the renowned advantages that made the MP5 famous. With unmatched durability and reliability, various customization options, and of course, the submachine gun's ever-popular compatibility with accessories, this Customs family is one of the most popular, and a fan favorite of many Class 2 weapon enthusiasts. The family is based on the original 9mm model, the MP5A3 with 8.9 inch barrel. Only the compact [[Heckler ＆ Koch MP5K|MP5K]] is not included in this family as it is not a full-size variant.

* [[.40 S＆W]] (MP5 10mm/.40 magazines'''^/!\''')  

* [[10mm Auto]] (MP5 10mm/.40 magazines'''^/!\''')  

* [[.357 SIG]] (MP5 10mm/.40 magazines'''^/!\''')

* [[.45 ACP]] (M3 Grease Gun magazines)

* [[.460 Rowland]] (M3 Grease Gun magazines'''^/!\2''')

* [[7.62x25mm Tokarev]] (PPS-43 magazines)

* [[9x25mm Dillon]] (MP5 10mm/.40 magazines'''^/!\''')

Note: All "Custom" magazines for MP5s weigh 0.5 units empty (Size tier: Small).<br/>  

'''^/!\''': MP5/10s, MP5/40s and MP5s chambered in 9x25mm Dillon and .357 SIG can all use the same MP5 10mm/.40 magazines, due to all four calibers having the same base diameter. However, please be careful and understand that "same magazine" does not mean "interchangeable ammunition"; always load your weapon with the caliber it is chambered for. A warning will be given if your Contestant is trying to load the wrong type of ammunition in his/her firearm.<br/>

'''^/!\2''': MP5s chambered in .460 Rowland can re-use M3 Grease Gun magazines, as .460 Rowland and .45 ACP have similar dimensions, however be careful to note that .460 caliber MP5s cannot shoot .45 and vice versa. A warning will be given if your Contestant is trying to load the wrong type of ammunition in his/her firearm.<br/>

Cosmetic variants:

** 0-1 trigger group (numbers ; 0 meaning "Safe", 1 meaning "Semi")

 

 

 

 

 

 

 

 

 

 

 

 

 

 

'''Fixed stocks:'''

* A2 solid fixed stock (Standard on MP5/40A2)

'''Retractable stocks:'''

* A3 retractable stock (Standard on MP5A3 and MP5/10A3)

'''Folding stocks:'''

* MP5K-PDW folding stock

No gunsmithing atelier would be worthy of bearing that name if it wasn't working on the ubiquitous and almost legendary AR-15 platform, often nicknamed the "Black Rifles", after their standard color. With its origins tied in the M16/M4 family of assault rifles, the AR-15's excellent modularity and almost endless combination of customization options more than make up for its average durability and reliability. This family of firearms is considered to be the definitive light combat rifle platform in the Mazes, favored and beloved by many.

* [[Colt Mark 18 Mod 0]]

* [[9x19mm Parabellum]] (Colt 9mm magazines)

* [[.300 AAC Blackout]] (STANAG magazines'''^/!\''')

* [[.40 S＆W]] (Custom AR 10/40 magazines, capacity 30 rounds, weight 0.5)

* [[.357 SIG]] (Custom AR 10/40 magazines'''^/!\2''', capacity 30 rounds, weight 0.5)

* [[.460 Rowland]] (M3 Grease Gun magazines'''^/!\3''')

* [[5.45x39mm]] (AR 5.45 magazines, such as those of the Tavor X95R)

* [[7.62x25mm Tokarev]] (PPS-43 magazines)

* [[9x25mm Dillon]] (Custom AR 10/40 magazines'''^/!\2''', capacity 30 rounds, weight 0.5)

* [[10mm Auto]] (Custom AR 10/40 magazines, capacity 30 rounds, weight 0.5)

 

The ''DMR'', ''Rifle'' and ''Carbine'' configurations possess a bayonet lug, which makes the weapon compatible with the [[Weapon accessory#Bayonet|M9 bayonet]].<br/>

The ''Competition'' and ''Subcarbine'' do not have a bayonet lug, and therefore cannot mount a bayonet.

 

* ''DMR'' configuration: 24 inch barrel. Class 1, Weight 22 by default.

* ''Rifle'' configuration: 20 inch barrel. Class 1, Weight 18 by default. (Standard on AR-15A2, M16A1, M16A2, M16A4)

* ''Carbine'' configuration: 14.5 inch barrel. Class 1, Weight 14 by default. (Standard on M4A1)

* ''Old style'' - Features a non-detachable, fixed carry handle. Comes standard on the AR-15A2, M16, M16A1, M16A2, and R0635 in the various different cosmetic subvariants.

* ''Flat top'' - Features a detachable carry handle on an accessory rail. (Standard on M16A4, M4A1 and Mk18 mod 0)

* Semi/Full (Standard on M16A1, M4A1, Mk18 mod 0, RO635)

'''Retractable and Folding/Retractable stocks:'''

* G3 Fiberlite 4-position stock (Standard on RO635)

* G4 M4 6-position stock (Standard on M4A1, Mark 18 Mod 0)

* MFT BMS stock

* CAR-15 M607 stock

* Crane/SOPMOD stock

* HK E1 stock (HK416/HK417 stock)

* Magpul ACS stock

* Magpul CTR stock

* M231 FPW wire stock

* VLTOR IMOD stock

'''Quad rails package'''

* Adds a set of quad rails to the rifle's handguards, regardless of the handguard type. The weapon gains two Large light mounts (LRail-L) and a Long underbarrel interface (URail-L).

* If the weapon has been equipped with a Semi-auto only selector, but has failed the above check, it becomes a '''Conventional rifle'''.

* If the weapon has been rechambered to a pistol caliber, but has failed the above checks, it becomes a '''Submachine gun'''.

=== UGL/USG compatibility (AR-15) ===

The AR-15's compatibility with underbarrel devices depends on the configuration of the weapon. The AR-15 family is notable for being the only one capable of accepting purpose-built underbarrel shotguns.

* '''URail-X (M203, Masterkey, M26 MASS)''': Rifle or Carbine configuration.

* '''URail-L''': Any configuration, as long as '''Quad rails''' is INSTALLED.

The Kalashnikov platform, also known as AKs, is perhaps the definitive medium-sized combat rifle platform in the Mazes. Often compared and contrasted against AR family weapons, AK firearms may have slightly less affinity to customization than the Black Rifles, but they are without a doubt the absolute kings of durability and reliability among the Customs families. It is said that even with minimal care, an AK will last a youkai's lifetime ; a bold claim that youkai themselves have tested and confirmed.

* [[Kalashnikov AK-12-1]]

* [[Kalashnikov AK-12-3]]

* [[5.56x45mm NATO]] (AK-101 magazines)

* [[5.8x42mm]] (QBZ 5.8mm magazines)

* [[7.92x33mm Kurz]] (Custom AK 7.92mm magazines, capacity 30 rounds and 40 rounds - respectively, weight 1.2 and 2)

* [[9x39mm]] (Custom AK-9 9x39mm magazines, capacity 20 rounds and 30 rounds - respectively, weight 1 and 1.2)

 

 

* ''Soviet threading'' (Standard on all stock AK weapons except AK-12s)

** Accessory compatibility: AK muzzle devices

* ''Western threading'' (Standard on AK-12s)

** Accessory compatibility: '''WP''' optic mount.

** Accessory compatibility: '''NATO''' optic mount.

** Accessory compatibility: GP-30 UGL (if the weapon also is in ''Rifle'' configuration), otherwise None.

* ''Integrated bipod'' (RPK style)

** Incompatible with ''Carbine'' and ''Subcarbine'' barrel configurations.

* ''Railed'' (AK-12 style)

** The weapon gains two Large light mounts (LRail-L) and a Long underbarrel interface (URail-L).

* Semi-auto only (Standard on SGL31-61)

* Semi/Full (Standard on AKM, AK-74, AK-101, RPK, RPK-74, AK-105, AKMSU, AKS-74U)

* Semi/Burst3/Full (Standard on AK-12-1, AK-12-2, AK-12-3)

=== Barrel length configurations (AK) ===

* ''Rifle'' configuration: 16.3 inch barrel. Class 1, Weight 18. (Standard on AKM, AK-74, AK-101, SGL31-61, AK-12-1, AK-12-2, AK-12-3.)

** Only the ''Rifle'' configuration is compatible with the [[Weapon accessory#Bayonet|6X5 AK bayonet]].

** If the weapon also has a ''Smooth'' handguard, it becomes compatible with the GP-30 UGL as well.

* ''Machine gun'' configuration: 23.2 inch barrel. Class 1, Weight 26. (Standard on RPK, RPK-74)

* ''Carbine'' configuration: 12.4 inch barrel. Class 2, Weight 14. (Standard on AK-105)

* ''Subcarbine'' configuration: 8.1 inch barrel. Class 2, Weight 9. (Standard on AKMSU, AKS-74U)

=== Shoulder stock configurations (AK) ===

 

 

 

 

 

 

==== Cosmetic stock variants (AK) ====

'''Fixed stocks:'''

* Fixed AK stock (Standard on AKM and AK-74)

* Fixed RPK stock (Standard on RPK and RPK-74)

 

 

'''Folding stocks:'''

* Under-folding AKMS wire stock (Standard on AKMSU) - '''Not compatible with Railed receivers'''

* Side-folding AK-100 stock (Standard on AK-101, AK-105 and SGL31-61)

* Side-folding AKS-74 skeletal stock (Standard on AKS-74U)

* Side-folding Type 56-2 semi-skeletal stock

 

* Side-folding/adjustable AK-12 stock (Standard on AK-12-1, AK-12-2, AK-12-3)

* Side-folding/adjustable RPK-12 stock

* If the weapon has been equipped with a Semi-auto only selector regardless of configuration, it becomes a '''Conventional rifle'''.

* If the weapon has failed the above check and has the ''Machine gun'' barrel configuration, it becomes a '''Machine gun'''.

== Customization options (Rem 700) ==

* Allows the weapon to receive external magazines, in order to extend the weapon's capacity and increase reloading speed. The modification also allows to load an extra round in the chamber (magazine capacity+1). All relevant magazines are custom.

* [[6.5x50mm SR Arisaka]] (Capacity 4 rounds)

* [[6.5x50mm SR Arisaka]] (Custom 700-65SR magazines, capacity 10 rounds)

Note: All "Custom" magazines for Rem 700 rifles weigh 1 unit empty.<br/>

 

 

* This configuration offers to leave the rifle virgin of optics and provisions to mount optics, leaving only iron sights. Standard on the 700 XCR II and 700 BDL.

 

* This configuration offers to install an '''integrated scope''', drilled and tapped to the rifle and intended to be a permanent mount.

* Four sub-options exist, which determines the magnification rate of the optic; essentially, the customer may pick the power group of their integrated scope:

 

* This configuration offers to drill and tap a suitable optic rail on the rifle, so that the user may install optics of their choice.

* Installs a full-length '''NATO optic rail mount [NATO]'''.

'''Dual rails package'''

* Two side rails are installed on the rifle's handguard, for the purpose of mounting lights and lasers. Adds 2 large light mounts.

 

* Drills and taps the rifle's handguard in order to install an integral bipod.

 

* Replaces the rifle's original frame with a one-piece, all-titanium frame, and introduces other, weight-reducing measures, such as a skeletonized bolt, fluted barrel, and replaces the original wood or synthetic stock with a carbon fiber stock.

** Reduces Weight Tier by 2.

Based on the Zastava M93 Black Arrow, of which it is the sole member of this peculiar family, the Black Arrow rifle platform is essentially an upscaled Mauser action, built for anti-matériel purposes. As such, the name of the game is extreme power. While it may not be the must customizable of families, what it has to offer may interest those seeking a weapon suitable to destroy the biggest of targets.

* [[.408 Chey Tac]] (Custom BA408 5-round magazines, Custom extended BA408 10-round magazines)

Note: All "Custom" magazines for Black Arrow rifles weigh 3 units empty (Size tier: X.Large).

* Reduces Weight Tier by 1, and adds 2 light mounts (Large).

Firearms that '''cannot''' receive threading:

* Firearms with '''integrated muzzle brakes or silencers''' (All firearms on [[ACL#Integrated muzzle brakes|this list]] + Norinco Type 85SD, Tula Arms VSS Vintorez and Enfield Sten Mk IIS)

* Revolvers (Except the '''Nagant M1895'''), multiple-barreled firearms, rocket launchers, grenade launchers

* Specific models:

** Armsel Protecta

** Bergmann MP18, Bryco Model 38

** Carl Gustaf m/45, CZ Sa vz. 26, Colt M1918 BAR

** General Motors M3 Grease Gun

** Hi-Point C9, Hi-Point JCP, Hi-Point JHP

** IZHMASH Mosin-Nagant Obrez, IZHMASH Simonov AVS-36

** KBP OTs-14 Groza-1, KBP OTs-14 Groza-4

** Lucznik Arms PM-63 RAK

** MAT-49, Mauser C96 Red 9, Mauser MG42

** Sterling L2A3, Sterling Mark 7

** Taiyuan Arsenal Shanxi Type 17, Tikkakoski Suomi KP/-31, TsNIITochMash PKP Pecheneg

** Voere American-180

** ZiD PKM, ZiD Sudaev PPS-43

Firearms which '''already have''' threading and thus do not need the threading service:

* ''Standard devices:'' All firearms listed with '''Thread(Std)''' on their event line, as well as all Customs AR-15s and Custom AKs with Western threading

* ''MAC devices:'' All firearms listed with '''Thread(MAC)''' on their event line

* ''MP5 3-lug devices:'' All firearms listed with '''Thread(3lug)''' on their event line, as well as all Customs MP5s unless they are ''MP5SD'' modified

* ''AK devices'' All firearms listed with '''Thread(AK)''' on their event line, as well as all Customs AKs with Soviet threading

* ''MP9 devices:'' All firearms listed with '''Thread(MP9)''' on their event line

=== Barrel improvements ===

* Replaces the standard barrel with a cold hammer forged and chrome-lined barrel made primarily out of carbon steel. Engineered for enhanced durability and hardness, making the firearm more durable.

* Equipped firearm obtains the following bonuses: '''Max Condition x1.25'''

* Titanium Nitride is a gold-colored coating, applied to the barrel and certain other internal parts. TiN is known for its extreme hardness yet adequate lubricity, extending the firearm's overall service life and reliability and making it suitable to withstand high-pressure ammunition in large quantities.

* Equipped firearm obtains the following bonuses: '''Max Condition x1.5'''

** The Joshua pistol possesses this type of barrel improvement by default, and it cannot be replaced.

'''4150CS barrel + Titanium Carbonitride (TiCN) coating'''

* Titanium Carbonitride is a dark bronze-colored coating, derived from TiN by adding a small amount of carbon during the manufacturing process. This has the effect of further increasing the hardness of the coating, at the cost of some toughness. Normally designed for improving the service life of heavy-duty industrial tools, TiCN coatings have also been found useful in the treatment of firearm barrels for maximum durability.

* Equipped firearm obtains the following bonuses: '''Max Condition x2''', '''Condition loss on critical failure x1.5'''

* Finish color: <span style="color: #808080">Dark grey</span>

* Equipped firearm obtains the following bonuses: '''Max Condition x1.25''', '''Condition loss on critical failure x0.5'''

'''NOTE:''' If a firearm previously equipped with an improved barrel is re-chambered, any barrel upgrades are preserved.

= Visual modifications =