Bolt Carrier Groups

CMMG AR-15 ECHO CONVERSION KIT W/ 25-RD MAGAZINE 22LR BLK
AR-15 ECHO CONVERSION KIT 22LR

The AR-15/M16 22LR Bravo Conversion Kit allows for economical practice with .22 LR ammo in any semi-auto AR-15.
It is a simple drop-in installation that replaces the bolt and carrier, and comes with a 25-round magazine.
Constructed from high-grade stainless steel, it's compatible with 5.56mm NATO mil-spec AR-15 rifles, including many gas piston systems.

4.5

In stock - Is a 'Call to order' product.

£249.90 £249.90 - £294.90

Transform your AR-15 into a .22LR powerhouse with the ECHO Conversion Kit! 🔥 Includes a 25rd magazine for ultimate fun.

CMMG

Converts a 5.56/.223 AR-15 to shoot .22LR with a simple bolt carrier group swap.
Includes a 25-round .22LR magazine and is optimized for 36 grain plated nose bullets.
May not function with .223 WYLDE chambers as it is not mil-spec.

In stock - Is a 'Call to order' product.

£294.90

J P ENTERPRISES JPBC-4BA LOW-MASS BOLT/CARRIER
308 AR LOW MASS BOLT CARRIER GROUP

LAW TACTICAL AR15 ARIC SUPPRESSED CARRIER W/ FOLDING STOCK ADAPTER
AR-15 ARIC INTERNAL CARRIERS W/LAW FOLDER

The 308 AR Low Mass Bolt Carrier Group by J P Enterprises is designed to reduce felt recoil in JP, DPMS, or Remington AR-style .308 rifles (LR-308 pattern).
It features weight-reducing cuts and wide carrier rails for improved bolt alignment and reduced wear, and comes with a complete JP EnhancedBolt™.
The carrier group is available with either QPQ or polished stainless finish, and the carrier key is pre-installed and staked.

In stock - Is a 'Call to order' product.

£579.90

Upgrade your AR-15 with the ARIC Internal Carrier! 🔧 Enjoy tool-free installation and backward compatibility for enhanced performance.

LAW TACTICAL

LAW TACTICAL AR-15 ARIC-C INTERNAL CARRIER FOR UNSUPRESSED FIREARMS
AR-15 ARIC INTERNAL CARRIERS

The Law Tactical ARIC allows AR15-type firearms to be fired with the stock folded or unfolded, enhancing tactical flexibility.
Installation and maintenance of the ARIC do not require tools, facilitating easy field stripping and component replacement.
ARIC is fully backward compatible with standard AR15 components, offering two versions for suppressed (ARIC-M) and unsuppressed (ARIC-C) usage.

In stock - Is a 'Call to order' product.

£869.90

LAW TACTICAL

The Law Tactical ARIC allows AR15-type firearms to be fired in both folded and unfolded positions when used with Law Tactical Folding Stock Adapters.
ARIC offers tool-free installation and maintenance, enabling easy field stripping and replacement of components.
There are two versions of the ARIC: ARIC-C for unsuppressed firearms and ARIC-M for both suppressed and unsuppressed usage, ensuring backward compatibility with standard AR15 components.

In stock - Is a 'Call to order' product.

£589.90

Upgrade your rifle with the AR .308 Low Mass Operating System for reduced recoil and faster follow-ups. 🚀 Designed for superior performance!

J P ENTERPRISES LMOS .308 ENHANCED BCG QPQ POLISHED
AR .308 LOW MASS OPERATING SYSTEM COMPLETE CARRIER GROUP

The AR .308 Low Mass Operating System Complete Carrier Group significantly reduces felt recoil and rifle movement during cycling for faster sight recovery and follow-up shots.
Included JP Enhanced Bolt™ is made from SAE 9310 for an extended lifespan and improved function, designed specifically for high-pressure .308, 6.5mm, and 6mm calibers.
Compatible with JP LRP-07™ and DPMS LR-308 platforms, the Enhanced Bolt™ cannot be used with Armalite AR-10 platforms or their clones.

In stock - Is a 'Call to order' product.

£609.90

J P ENTERPRISES JPBC-2A FULL-MASS BOLT & CARRIER
AR-15 5.56 FULL MASS BOLT CARRIER GROUP

The AR-15 5.56 Full Mass Bolt Carrier Group by J P Enterprises is precision-machined with an enhanced bolt made of high-grade 9310 steel for extended durability.
It offers a choice between Full Mass carriers for standard weight and reliability, and Low Mass carriers for reduced recoil and increased bolt speed for rapid firing.
The carriers come with JP's super-hard QPQ finish or a polished stainless finish for maximum wear resistance and minimal friction, and include necessary components like the extractor and firing pin.

In stock - Is a 'Call to order' product.

£489.90

Upgrade your build with the reliable AR-15 9mm Bolt Assembly for Glock. ✨ Durable black nitride finish ensures top performance!

BROWNELLS AR-15 9MM BOLT ASSEMBLY FOR GLOCK BLACK NITRIDE
AR-15 9MM BOLT ASSEMBLY FOR GLOCK

PHASE 5 TACTICAL AR-15 CHROME LINED BOLT CARRIER GROUP BLACK
AR-15 CHROME LINED BOLT CARRIER GROUP BLACK

The Brownells AR-15 9mm Bolt Assembly is designed for AR lower receivers using Glock® pattern magazines and is made from durable 4140 and 4340 steel with a Black Nitride finish.
This bolt assembly includes a removable carrier weight plug for compatibility with the Law Tactical Folding Adapter, but it is not compatible with the Mean Arms ENDO Mag conversion kit.
It is a reliable and affordable option for those building a 9mm AR, ensuring high performance for the increasingly popular 9mm AR platform.

In stock - Is a 'Call to order' product.

£159.90

Enhance your rifle's reliability with the Phase 5 AR-15 Chrome Lined Bolt Carrier Group. 🔧 Features heat-treated interiors and a sleek black finish.

PHASE 5 TACTICAL

STERN DEFENSE 9MM COMPLETE BOLT BLACK SEMI AUTO ONLY
AR-15 9MM BOLT FOR GLOCK AND COLT

The Phase 5 AR-15 Chrome Lined Bolt Carrier Group is heat treated with chrome lined interiors and a black phosphate exterior coating.
It includes a complete set with cam pin, firing pin, gas key, and bolt, and is suitable for .223 Remington and 5.56 mm NATO cartridges.
All bolts are high-pressure tested and magnetic particle inspected to ensure reliability and durability.

In stock - Is a 'Call to order' product.

£209.90

STERN DEFENSE

RUBBER CITY ARMORY AR-15 LOW MASS 5.56 BOLT CARRIER GROUP
AR-15 LOW MASS 5.56 BOLT CARRIER GROUP

The Stern Defense 9mm AR-15 Bolt is compatible with both Glock and Colt magazines and fits standard and Glock-pattern upper receivers.
Manufactured from 8620 AISI steel with a Melonite finish, it ensures durability and corrosion resistance.
Comes fully assembled for easy installation and is designed for semi-automatic fire only, not compatible with full-auto fire-control groups.

In stock - Is a 'Call to order' product.

£199.90

RUBBER CITY ARMORY

CMMG AR MK 57 CONVERSION KIT 22LR W/ 3 25-RD MAGS
AR MK57 CONVERSION KIT 22LR W/ MAGAZINES

The RCA low mass BCG is made from 8620 steel with a Blacknitride+ finish, optimized for AR-15 platform systems and designed to reduce felt recoil.
Features include a side staked stainless steel billet gas key, a Nitrided 17-4 stainless firing pin, and a precision machined 9310 nitrided bolt with a tool steel extractor.
At a lightweight 8.9 ounces, this bolt carrier group is aimed at competitive shooters in the 3Gun scene, supporting cartridges such as the 223 Remington and 5.56 mm NATO.

In stock - Is a 'Call to order' product.

£324.90

CMMG

WMD GUNS AR-15 NIB-X® BOLT & CARRIER GROUP
AR-15 5.56 NICKEL BORON BOLT CARRIER GROUPS

The CMMG Mk57 Conversion Kit allows for easy transition from 5.7x28mm to .22 LR in AR-15/Mk57 platforms.
No tools are required for installation, offering a fast and simple conversion process.
The kit includes three 25-round .22 LR magazines compatible with mil-spec AR-15 and Mk4 magazine wells.

In stock - Is a 'Call to order' product.

£314.90 £284.90 - £314.90

Upgrade your AR-15 with the WMD Nickel Boron Bolt Carrier Group! ✨ Enjoy reduced friction and easy cleanup for high-volume shooting.

WMD GUNS

The WMD Guns AR-15 NIB-X® Bolt & Carrier Group features a NiB-X nickel boron coating for reduced friction and excellent resistance to corrosion and abrasion.
Designed for high performance and ease of maintenance, the coating prevents carbon adhesion, making cleaning faster and easier, ideal for 3-gun competitors and high-volume shooters.
The set is made from high-grade steel alloy, meeting government M16 specs, and includes a carrier made of 8620 carbon steel and a bolt from Carpenter 158 steel alloy, both finished in silver nickel boron.

In stock - Is a 'Call to order' product.

£254.90

J P ENTERPRISES JPBC-3 223 LOW MASS POLISHED CARRIER
AR-15 5.56 LOW MASS COMPLETE BOLT CARRIER GROUPS

The bolt-and-carrier group is precision-machined with JP's enhanced bolt made of high-grade 9310 steel for extended life expectancy beyond standard bolts.
Available in JPBC-2A Low Mass carriers for reduced recoil and increased bolt speed, or JPBC-2A Full Mass carriers for normal weight and absolute reliability in duty rifles.
Features JP's super-hard QPQ finish for maximum wear resistance and minimal friction, with a 100% increase in bearing surface for smoother cycling and reduced wear on the receiver.

In stock - Is a 'Call to order' product.

£459.90 £459.90 - £469.90

BROWNELLS 308AR BOLT CARRIER GROUP 308 WIN NITRIDE MP
308AR BOLT CARRIER GROUPS

The Brownells Complete .308 Bolt Carrier Group is compatible with DPMS LR-308 pattern rifles and is made from high-quality 9310 and 8620 steel, with both parts being MPI tested for reliability.
This BCG is available with either a Black Nitride or Nickel Boron finish, providing resistance to wear and self-lubrication, respectively.
It is designed with features such as forward assist notches and a staked gas key, and comes fully assembled with all necessary components, including the firing pin and extractor.

4.5

In stock - Is a 'Call to order' product.

£234.90 £234.90 - £254.90

BROWNELLS AR-15 BOLT CARRIER GROUP 5.56X45MM NITRIDE MP
AR15 BOLT CARRIER GROUP 5.56X45MM NITRIDE MP

The Brownells AR-15 Bolt Carrier Group is compatible with 5.56 NATO, .223 Remington, and 300 Blackout chambered AR-15s.
Constructed with high-quality materials, featuring a 9310 tool steel bolt and 8620 hardened steel carrier, all finished with a nitride coating.
Includes a complete set of components and is magnetic-particle inspected for quality assurance, but is not suitable for full-auto lower receivers.

In stock - Is a 'Call to order' product.

£159.90

BROWNELLS AR-15 SEMI AUTO CHROME BOLT CARRIER GROUP NO SERRATIONS
AR-15 SEMI-AUTO CHROME BOLT CARRIER GROUPS

The Brownells AR-15 Chrome Bolt Carrier Groups are designed for easy cleaning and low friction, with chrome plating for corrosion protection and smoother operation.
Compatible with 5.56 NATO, .223 Remington, and 300 Blackout chambered rifles, but not with full-auto lower receivers.
Available with or without forward-assist serrations, suitable for different AR-15 models, including retro builds like the Model 601 and XM16E1.

Reordered - Is a 'Call to order' product.

£189.90 £164.90 - £189.90

J P ENTERPRISES JPBC-2A 6.5 GRENDEL / 6MM ARC FULL MASS BOLT CARRIER GROUP
AR-15 6.5 GRENDEL/ 6MM ARC FULL MASS BOLT CARRIER GROUP

The J P Enterprises 6.5 Grendel / 6mm ARC Full Mass Bolt Carrier Group is made of high-grade 9310 steel for increased longevity.
It is designed to replicate standard carrier weight, ensuring reliability for duty rifles and smooth cycling due to increased bearing surface.
The BCG features a durable QPQ finish for wear resistance and minimal friction, and comes with all necessary components like the extractor and firing pin.

Reordered - Is a 'Call to order' product.

£509.90

Enhance your AR-15/M16 with the ultra low mass carrier ⚙️ for improved reliability and performance. Lightweight, durable, and precision-engineered!

J P ENTERPRISES AR15/M16 ULTRA LOW MASS CARRIER W/ 223 BOLT
AR-15/M16 ULTRA LOW MASS CARRIER W/223 BOLT

FAILZERO FZ 5.56 LIGHTWEIGHT BCG
FZ 5.56 Lightweight BCG

The JPBC-1 carrier enhances reliability and performance, particularly when used with JP's high-efficiency muzzle brake, adjustable gas system, and Silent Captured Spring.
It is significantly lighter than other carriers, weighing 2.9 ounces less than the 416 LMOS™ carrier and 0.7 ounces less than titanium carriers.
The carrier kit includes a JP precision-ground, one-piece gas ring and a titanium firing pin for improved bore-to-gas seal fitment and prevention of slamfires.

Reordered - Is a 'Call to order' product.

£589.90

FAILZERO