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.
The Law Tactical ARIC allows AR15 firearms to be fired with the stock folded or unfolded, providing a drop-in conversion that replaces the traditional BCG, Recoil Spring, and Buffer.
ARIC installation and maintenance do not require tools, making it easy to field strip, clean, and maintain while ensuring compatibility with standard AR15 components.
There are two versions of the ARIC (ARIC-C for unsuppressed and ARIC-M for suppressed usage) to accommodate different firing conditions, both compatible with 5.56mm NATO and .223 Remington cartridges.
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.
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.
The CMMG Bravo SS .22LR Conversion Kit allows for economical practice with a semi-auto AR-15 using .22 LR ammo.
Installation is simple, involving only the replacement of the bolt and carrier, and is compatible with any mil-spec AR-15 rifle chambered in 5.56mm NATO.
The kit includes a stainless steel bolt group and comes with three 25-round magazines for extended shooting sessions.
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.
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.
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.
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.
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.
Aero Precision's .308/7.62 Bolt Carrier Group features a Black Nitride finish or optional Nickel Boron, with a laser engraved Aero logo and is made from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt).
The BCG is compatible with AR .308 style uppers and rifles, includes a high pressure bolt, and is designed to function with multiple .308 based cartridges.
Key components such as the Gas Key and Extractor are made from high-grade materials and the entire assembly is MPI/HPT for reliability.
The M16 5.56 Bolt Carrier Group by Spikes Tactical is designed to mil-spec dimensions and is suitable for both semi-auto and select-fire rifles.
It includes a magnetic particle inspected bolt for structural integrity and a hard-chromed, full-length shroud carrier for reliable cycling.
The product features a laser-engraved Spike’s Tactical logo and is compatible with AR-15/M16/M4 rifles in .223/5.56 calibers, with a phosphate finish.
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.
The M16 5.56 Nickel Boron Bolt Carrier Group is designed for reliability in semi-auto and select-fire rifles with mil-spec dimensions and an M16-type shroud for full-auto compatibility.
It features a FailZero EXO™ nickel-boron coating for reduced friction and enhanced wear-resistance, ideal for high-intensity applications.
Key components include a magnetic particle inspected bolt made of Carpenter 158 steel and a chrome-lined 8620 carbon steel carrier, ensuring durability and consistent performance.
The AR-15 5.56 Low Mass Complete Bolt Carrier Groups feature JP's high-grade 9310 steel enhanced bolt for extended life expectancy.
Available with JPBC-2A Low Mass carriers for reduced recoil and increased bolt speed, or JPBC-2A Full Mass carriers for standard weight and reliability.
Both carriers have a super-hard QPQ finish for wear resistance and minimal friction, and come with all necessary components including extractor and firing pin.
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.
The WMD M16 NIB-X® Bolt Carrier Group features a NiB-X® nickel boron coating for reduced friction and enhanced durability, resisting corrosion and abrasion.
Designed for high-performance and ease of maintenance, the coating prevents carbon adherence, making cleanup quicker and easier, especially for high-volume shooters.
Constructed from high-grade steel alloys, with the carrier made of 8620 carbon steel and the bolt from Carpenter 158 steel, it fits mil-spec AR-15/M16 upper receivers.
The 308 AR Bolt Carrier Group is designed for AR-style .308 rifles, featuring a carrier made of 8620 steel with a phosphate finish and a chrome-lined interior.
It includes a bolt made from 9310 hardened steel, an S7 tool steel extractor, and a stainless steel firing pin, all with phosphate finishes.
The gas key is properly torqued and staked, and the group comes with a cam pin and firing pin retaining pin, ready for immediate use without forward assist serrations.
The Colt M16 5.56 Bolt Carrier Group is a complete mil-spec assembly, including bolt, bolt carrier, and firing pin, ready for use in AR-15/M16 rifles.
Each bolt is high pressure tested and magnetic particle inspected to ensure reliability and freedom from imperfections.
The carrier features a full-length shroud for tripping auto sear in full-auto rifles and is chrome lined to resist wear and ensure smooth cycling.