BCG
Gas & Brass Armory offers a trusted selection of AR-15 Bolt Carrier Groups (BCGs) for your rifle builds in Brandon, FL. Whether you're looking for a reliable mil-spec BCG or a premium enhanced model, we stock top brands like Aero Precision, BCM, FailZero, and Toolcraft. Choose from phosphate, nitride, or nickel boron finishes, with full-auto and lightweight options available. All BCGs are built to perform under pressure and keep your rifle cycling reliably.
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ANGSTADT AR15 BCG 556NATO BLK
Angstadt Arms
MSRP: $170.80$122.00The heart of a reliable AR-15 build is a quality 5.56 bolt carrier group assembly. These are the same high quality BCG's Angstadt makes for law enforcement and military groups around the world. Machined to mil-spec dimensions and finished in a beautiful...MSRP: $170.80$122.00 -
ANGSTADT AR15 BCG 45ACP BLK
Angstadt Arms
MSRP: $222.60$159.00This 45 ACP bolt carrier group is compatible with GLOCK 45 ACP AR-15 (AR-45) builds. It features removable weight for use with the Law Tactical folding stock adapter.MANUFACTURER: Angstadt ArmsMPN: AA45BCGNITMODEL: 0Description: Bolt Carrier GroupType:...MSRP: $222.60$159.00 -
Out of stock
WMD NIB-X BCG WITHOUT HAMMER 556 BLK
WMD Guns
MSRP: $219.24$157.00BCG components are NiB-X coated and polished to reduce fouling adherence. Coating is guaranteed for life against chipping, spalling or flaking. Over 30K rounds in Government protocol endurance testing did not wear the coating off. Especially beneficial...MSRP: $219.24$157.00 -
Out of stock
ROSCO 556NATO/300BLK BCG PHOS BLK
Rosco Manufacturing
MSRP: $196.88$141.00These 5.56 / 300 BLK Bolt Carrier Groups are Phosphate Coated with Chrome Lined Gas Key & Bolt Channel, Full-Auto rated, properly staked, and the bolts are Matched to the barrel. Their Rosco Phosphate Bolt Carrier Groups are designed to meet the...MSRP: $196.88$141.00 -
Out of stock
ROSCO 556NATO/300BLK BCG MELONITE BK
Rosco Manufacturing
MSRP: $190.09$136.00The Rosco Melonited Bolt Carrier Groups are designed to meet the modern-day carbine shooters requirements. They have also balanced input from their consumers and military end users in order to bring you the product you need, not just the one they want to...MSRP: $190.09$136.00 -
RADIAN ENHANCED BCG FOR AR15 BLK NIT R0081
Radian Weapons
MSRP: $262.44$0.00The Enhanced Bolt Carrier Group for AR15/M16 platform weapons was designed to minimize carrier tilt and reduce friction inside the upper receiver by relocating key bearing surfaces. All materials, tolerances, and coatings meet or exceed MilSpec...MSRP: $262.44$0.00Qty in Cart: 0Quantity:Price:MSRP: $262.44$0.00Subtotal: -
Out of stock
PHASE5 BOLT CARRIER GROUP M16 BLK
Phase 5 Weapon Systems
MSRP: $210.00$150.00Phase 5's Mil-spec M16/M4 bolt carrier features a heat treated and chrome lined inner with a black phosphate coating. The complete bolt carrier group includes cam pin, firing pin, gas key, and bolt. All bolts are HPT/MPI tested.MANUFACTURER: Phase 5...MSRP: $210.00$150.00 -
Out of stock
PHASE5 BOLT CARRIER GROUP AR15 BLK
Phase 5 Weapon Systems
MSRP: $210.00$150.00Phase 5's Mil-spec AR-15 bolt carrier features a heat treated and chrome lined inner with a black phosphate coating. The complete bolt carrier group includes cam pin, firing pin, gas key, and bolt. All bolts are HPT/MPI tested.MANUFACTURER: Phase 5...MSRP: $210.00$150.00 -
Out of stock
MIDWEST 5.56/AR15 BLACK NITRIDE BCG
Midwest Industries
MSRP: $221.13$158.00High quality components and precise manufacturing make Midwest Industries parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on...MSRP: $221.13$158.00 -
Out of stock
LWRC ADVANCED DI BCG 6.8SPC
LWRC
MSRP: $428.75$343.00The Advanced Direct Impingement Bolt Carrier Group offers superior performance, increased reliability, and longer part replacement life cycles than the MIL-STD components. These gains are achieved through LWRCI's design technology paired with...MSRP: $428.75$343.00 -
Out of stock
LUTH AR BOLT COMPONENT KIT AR 15
Luth-AR
MSRP: $39.47$29.00This comprehensive kit includes everything you need to repair or upgrade your rifle's bolt assembly, including an extractor, extractor spring, gas rings, firing pin, and other essential parts. These parts are made from high-quality materials and are...MSRP: $39.47$29.00 -
Out of stock
LBE 308 BOLT CARRIER GROUP
LBE Unlimited
MSRP: $268.03$192.00LBE .308 Bolt Carrier Group (DPMS Style). Billet carrier machined from 8620 Steel and Case Hardened.MANUFACTURER: LBE UnlimitedMPN: AR10BCGMODEL: 308Description: Fits DPMS Style .308 UppersType: Bolt Carrier GroupColor: BlackMSRP: $268.03$192.00