Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG includes the proper chrome lined and heat treated gas key. Gas key is secured to carrier with Grade 8 fasteners and properly staked per Mil-Specs. This ensures a strong staking and proper gas system functioning. The bolt assembly is CNC machined from Mil-Spec Carpenter No. 158® 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).
Complete Mil-Spec M-16 Bolt Carrier with Bolt Assembly HPT/MPI Tested:
I bought this for my wife's left handed build. It is everything that was advertised. I will definitely be purchasing more bcgs from cryptic coatings. Nick on 9th Jun 2020
This Bolt looks so good, but havent fired it yet t
For the function test Daniel Cabral on 9th Jun 2020
I have shot almost 10 thousand rounds through my 300 blackout, with cleanining the bolt every 1k-1.5I rounds and this bolt has never skipped a beat!
This will be the only bolt I run on my build from now on! Joseph Wampler on 6th Jun 2020
Received my mystic gold BCG. Super fast shipping, awesome service - I placed my order over the phone. When I opened the package I was blown away by how nice this BCG was very slick applied coating was perfect. David Mason on 30th May 2020
Only put about 200 rounds through it so far, but it looks great and is buttery smooth. I love it. Jordan on 29th May 2020
put this in a custom build, and it works flawlessly. I cant believe how absolutely smooth it is, and easy to clean Unknown on 29th May 2020
Great BCG, Works like a charm and cleans up nicely. The color is just sick. Like to see more products from Cryptic. Recommended to all if you want a Bad ass BCG. Dave on 29th May 2020
The bolt carrier group feels much smooth than the stock. It was a great fit and looks very high quality. Very pleased with the product. Unknown on 29th May 2020
Awesome product, can’t be more happier!!! Unknown on 28th May 2020
This thing kicks ass. Smooth as oiled glass. And a nice smooth cycle after every shot. Gonna buy more. Unknown on 20th May 2020