Stag Arms Ar-15 Mil-Spec Bolt Carrier Group 5.56mm Left Hand. The Stag Arms Left Handed AR-15 Bolt Carrier Assembly is designed to not only work with any left handed Stag Arms AR-15 rifle but also any AR-15 upper receiver designed for left-handed ejection. The manganese phosphate coated 8620 steel bolt carrier assembly is a wonderful option for your next left hand duty ready AR-15 build. Manganese phosphate 8620 steel construction with a chrome lined gas key and bolt recess 5.56/.223 Left-Handed Bolt Includes Bolt carrier, bolt assembly, cam pin, firing pin, and firing pin retaining pin M16 profile carrier with a shrouded firing pin and proper mil-spec staking of the gas key The left-handed bolt carrier assembly
Stag Arms Ar-15 Mil-Spec Bolt Carrier Group 5.56mm Left Hand
Nemo Ar-15 Bolt Carrier Group .224 Valkyrie. Beyond “Mil-Spec” the NEMO AR bolt carrier group is perfect for those who are looking for assured reliability, with the best in coating technology. The bolt carrier group is the heart of your rifle. Selecting the best construction and coatings will ensure that you have lasting reliability and accuracy. .224 Valkyrie designation laser engraved onto bolt Bolt face diameter and extractor designed specifically for the .224 Valkyrie cartridge Case hardened 9310 steel bolt, nickel boron coated, magnetic particle inspected, ground surfaces to meet exacting dimensional and surface finish tolerances Case hardened 8620 steel bolt carrier, nickel boron coated, g
Wilson Combat Ar-15 Bolt Carrier Assembly 5.56 Nato. Manufactured by Wilson Combat’s finest domestic Mil-Spec contractors, these are among the best 5.56 AR rifle bolts on the market and the same bolts they use as the basis of our renowned custom rifles! Wilson Combat’s bolt is precision machined from Carpenter No. 158 steel, shot peened for increased strength and a includes a tool steel extractor and ejector, appropriate extractor spring, and is MPI . The extractor is 4140 gun quality, annealed, cold drawn steel per the Mil-Spec Parkerized externally and internally chrome lined the 8620 steel carrier includes a proper machined Mil-Spec gas k
Aero Precision Ar 308 Bolt Carrier Group, Phosphate. The Aero Precision .308 / 7.62 Bolt Carrier Group is the perfect firing mechanism for your big-bore rifle build. This high quality BCG features a mil-spec phosphate finish and now includes a laser engraved Aero Precision “A” logo! Carrier Billet carrier machined from 8620 steel and case hardened Now features laser engraved Aero Precision logo Mil-Spec phosphate coating Properly staked gas key Chrome lined gas key and firing pin channel Forward Assist serrations Bolt High pressure .308 bolt machined from 9310 steel and case hardened Multi-caliber bolt designed to function with .308, 7.62×51, 6.5
Brownells M16 Bcg & Ballistic Advantage 16in Bbl Builder’s Bundle. The Brownells M16 5.56 Complete Bolt Carrier Group is designed to work easily and reliably in any AR-15 or M16 rifle chambered in 5.56x45mm, 300 AAC Blackout or .223 Remington. The Brownells M16 5.56 Complete Bolt Carrier Group is constructed with a bolt made from 9310 steel, which is finished with a heat treatment and shot peening. The carrier is fabricated from 8620 hardened steel. Each element of the bolt-carrier group is finished in a black-nitride coating. Magnetic-particle inspected material Extractor includes spring and rubber insert Includes torqued and staked gas key Functions with any cartridge based on the 5.56 NATO cartridge case The Browne
Rise Armament M16 Bolt Carrier Group Nickel Boron. RISE Armament advanced M16 Bolt Carrier Group with Nickel Boron finish is manufactured with precision and individually inspected to ensure high-level performance. Coated with nickel boron to reduce friction and improve overall performance. Coated with nickel boron to reduce friction and improve the rifle’s overall performance Unit weight: 11.6 oz. Individually MPI tested Bolt: 9310 MPI tested Carrier: 8620 tool steel heat treated and case hardened Gas key: tool steel – grade 8 hardened fasteners and staked properly Cam pin: 4140 steel Extractor: tool steel shot peened
Sons Of Liberty Gun Works Ar-15 Bolt Carrier Group. The bolt-carrier group is at the heart of the AR-15, and its quality and function can mean the difference between a high-performance fighting rifle and a jam-o-matic. The Sons of Liberty Gunworks Bolt Carrier Group is a dedicated design for any AR-15 that uses high-quality materials and components to ensure the best possible performance in your gun. Each Sons of Liberty Gunworks AR-15 Bolt Carrier Group includes components made from a number of cutting-edge materials. The bolt itself is machined from Carpenter Technology No. 158 steel, which is heat-treated to military specifications, shot-peened, vibratory tumbled, and full-auto test fired in a complete assembly to ensure performanc
Brownells Ar-15 Brownells 9mm Bolt Carrier Group. The Brownells 9mm AR-15 Bolt Carrier Group is specifically designed for use in pistol-caliber carbines, which are a growing trend in the AR-15 world. This bolt-carrier group allows AR builders to custom-make their own 9mm AR. The Brownells 9mm AR-15 Bolt Carrier Group is constructed entirely from a single piece of steel billet and features a pinned weight that can be taken out for compatibility with different buffer systems. Compatible with both Glock and Colt magazines Features complete nitride treatment for reduced friction The Brownells 9mm AR-15 Bolt Carrier Group also features a captured firing pin in order to prevent the possibility of slam fires.
