Coated titanium bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 6A1-4V aircraft grade titanium with shrouded firing pin. 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 love how lightweight it is. Went with a captured spring behind it. The only thing is i think its a hair too long. Having issues getting the upper to seat with the lower. david anthony on 26th May 2020
Not sure how to say this is simply the best BCG I've ever had the privilege of using, other than saying it on here for the world to see. Don't bother with gimmicks, get the real deal and cry only once. Just Link Jones on 30th May 2019
I've just purchased my 3rd titanium BCG from Cryptic Coatings. I have two .223/5.56 BCGs and now a new 6.8 SPC II BCG. I have run thousands of rounds through my .223 as it's my match gun and thus I put a ton of rounds through it year after year. It is now 3 years old and still looks brand new. A little bit of wear on the cam pin but that's to be expected. No abnormal wear on the billet receiver (7075-T6 Aircraft Grade Aluminum). All my Cryptic BCGs are Mystic Black. I use Ballistol to lube and the system runs like a dream without fail. I'll never buy anything other than Cryptic BCGs! Unknown on 11th Apr 2019
Contacted by phone and emailed Karen today with no reply yet, quality is number 1 , I own 5.56 bcg by cryptic coating works great so not sure what is going on here but waiting to see Gary blankenship on 2nd May 2018
Super slick, looks great, runs like a champ. Shipped very fast too! Unknown on 3rd Apr 2018
I'm very happy with this bolt carrier group runs excellent, cleans easily and is very light weight the finish looks really good too Unknown on 21st Dec 2017
Received this BCG and love it runs clean consistent success cycling ammo happy with my purchase. Dante P on 27th Nov 2017
I just got mine in mail and already I can tell the difference in weight. I got this because I just got an echo trigger and I wanted a bolt that could hold up to it. So far it works great. Not to mention but this company has some of the best customer service. Ryan LBS on 31st Aug 2017
Very pleased with Cryptic Coating Very well made product durable and looks Killer in my $keletonized Ar 10 & AR 15 builds. Hats off to another great American made company!! Unknown on 11th Jan 2017
So my neighbor got a mystic gold bcg from these guys right after I got a fail zero and did a pof roller cam pin upgrade. Even with mine oiled, his was smoother. Then after going shooting and his just wiping off and mine had discolored from heat and carbon(we run suppressed) I was sold. But I wanted a lighter mass carrier with my ultra lightweight build and because I have a jp industries silent capture kit with the adjustable spring kit I just so happened to drop the green spring into my buffer. Boom, cycled smoothly and didn't short stroke any rounds, perfect. I got lucky, I didn't have to play with it at all. Tried 4 types of ammo, from crappy Tulammo to lake city 855's. Flawless. The bcg is so slick that it was noticeably quieter than my old one. Could not be happier.
Thanks again cryptic coatings!!! You're the best!!!! Unknown on 18th Dec 2016