M16 BOLT CARRIER GROUP
The M16 Bolt Carrier Group is a complete steel bolt carrier assembly designed for AR-platform rifles. It delivers rugged, reliable cycling and accurate firing across all conditions.
It houses essential M16 bolt carrier group parts: the bolt, gas key, cam pin, firing pin, extractor, and ejector. It captures gas pressure to drive the bolt, eject spent casings, reset the hammer, and chamber a fresh round engineered for both full-auto and semi-auto reliability.
Key Features of the M16 Bolt Carrier Full Auto
-
Made from Carpenter 158 steel (bolt) and 8620 steel (carrier), the M16 BCG is heat-treated and built to endure high-pressure cycling and extended use without failure.
-
Includes a full-auto lug for compatibility with registered full-auto lower receivers. Even in semi-auto rifles, the added mass improves function under rapid fire.
-
Properly staked and chrome-lined gas key prevents gas leakage, loosening, or failure—meeting strict mil-spec standards for performance and safety.
-
Available in finishes like black nitride, nickel boron, Parkerized, DLC, and chrome, offering superior corrosion resistance and reduced fouling.
-
Each unit undergoes HPT (High Pressure Testing) and MPI (Magnetic Particle Inspection), confirming structural integrity and long-term durability.
Legal Status
The M16 bolt carrier group is legal to own and install in civilian rifles. It does not make a firearm fully automatic and is not restricted by the NFA. Using an M16 BCG in an AR‑15 is completely lawful under federal regulations.
Why Choose Our M16 Bolt Carrier Group?
-
The extra mass of the M16-cut design helps smooth out recoil impulse and boosts reliability, especially during rapid or sustained fire sessions.
-
Top-grade steel and precision testing ensure a longer service life with consistent cycling and fewer mechanical issues over time.
-
Designed for compatibility with AR‑15 and M16 lowers, this BCG works with most standard and custom rifle builds.
-
Upgraded extractor and ejector springs, combined with premium finishes, keep the action clean, slick, and easy to maintain.
-
Each unit is MPI and HPT tested, minimizing the risk of internal stress cracks or catastrophic failure under pressure.
Price and Value
Buy your M16 Bolt Carrier Group now starting from just $150. Our BCGs offer mil-spec materials, advanced coatings, and proven reliability for a smart investment.
HOW TO USE THE M16 BCG
-
Ensure your AR is cleared and safe before disassembly.
-
Separate the upper receiver, then remove the charging handle and existing BCG.
-
Lubricate and inspect the new M16 BCG; confirm gas key is properly staked.
-
Reinsert the carrier with charging handle, cycle it, and check bolt lockup.
-
Run a function test using dummy rounds, then live fire to verify cycling and ejection.
