PMA 5.56 Bolt Carrier Group - Nitride

Product Code: BCG-556-NIT
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$99.00 MSRP: $119.00
You save $20.00
Quantity in Stock Quantity in Stock: In Stock
Build at home

Build at home

American made product

American made

100% satisfaction

100% satisfaction


PMA 5.56 Bolt Carrier Group - Nitride


The PMA Bolt Carrier Group is a sturdy, nitrided BCG that will go as long as you can.  We pride ourselves on gauging and inspecting each one. You simply cannot go wrong with choosing one.

The Gas key is secured to the carrier with Grade 8 fasteners and properly staked per Mil-Specs. This insures a strong staking and proper gas system functioning. The bolt assembly is CNC machined from 9310 steel and shot peened for increased strength per Mil-Spec; includes tool steel extractor with spring and viton O-ring; firing pin chromed finished with firing pin retaining pin and cam pin.

HPT (High Pressure Tested) and MPI (Magnetic Particle Inspected).


  • Bolt Carriers made from 8620 Steel
  • Keys made from 4130 Steel
  • Bolts available in 9310
  • Milspec chrome coated firing pin
  • Nitride finsh


Don't waste your time with questionable manufacturers, just do it right the first time! Get yours today!

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  • star star star star star 4

    Posted by jerry Lewis on Jan 7th 2023

    Looks and Feels like a High end product.