Mystic Black Coated Titanium Bolt Carrier Group

Coated Titanium Bolt Carrier Group

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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:

  • Titanium Bolt Carrier is 4oz Lighter Than a Standard Mil-Spec 8620 BCG
  • Mil-Spec Bolt Carrier is Machined from Aircraft Quality 6A1-4V Titanium
  • Mil- Spec Chrome Lined Gas Key
  • Key Staked with Grade 8 Screws, per Mil-Spec
  • Mil-Spec Carpenter 158® Bolt w/ Spring and Ejector 
  • Tool Steel Extractor w/ Spring and viton O-ring
  • Mil-Spec Firing Pin w/ Chrome Finish
  • Mil-Spec Cam Pin
  • Full Auto Carrier (Backward compatible with all semi-auto rifles)
  • 5.56 BCG Weight - 7.78 oz.
Calculated at checkout
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  • Product Reviews


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    1. Smooth as silk and is by far the best bcg I've ever held. Hands down.

      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!!!!
      on 18th Dec 2016

    2. Piece of Heaven

      Major props to Ms. Karen for keeping me aware of when this hard to obtain item was available this BCG has been a smooth running piece of machinery. on 22nd Nov 2016

    3. Brilliant

      This is the lightest and best made BCG that I could dream of. You made this dream a reality. Thank you so much for true dedication to your work. A brilliantly made BCG and a real marvel to shoot and clean. on 16th Aug 2016

    4. Perfection Achieved!

      Perfect balance of light and strong. This BCG reduced weight, and thanks to the slick coating, dramatically shortens cleaning times. This is my 2nd Cryptic BCG and won't be my last. on 27th Jul 2016

    5. The Best Top Of The Line BCG Out There

      I go to the DFW Gun Shows Looking to get my hands on different Cryptic Coatings... These are hard to find but this is the best BCG you can grab. It's slick shiny I stay away from the standard BCG because the coat is slick and easy to clean it helps cycle the ar fasterer than a Lantac, standard BCM, standard spikes tactical BCG. I'm on my 2nd BCG from cryptic coating. I have the silver and ordered the mystic black... when I have the money invested in to my build I refuse to settle for a standard BCG... Cryptic Coating is the best period and worth the money if you want a a quality upper make sure you put this in your ar15 build on 2nd May 2016

    6. The best coated bcg period

      The cost is greatly justified the difference in weight is very noticeable. The coating is mirror slick and almost slips out your hands. The customer service was excellent. The shipping was quick. In my case my ar is side charging so I'm having the hole drilled and tapped for the charge handle. Would highly recommend for anybody wanting the best bcg for there rifle with the latest in coating tech. on 1st Mar 2016

    7. The Best

      This bolt carrier group is by far the best in the industry!! on 10th Aug 2015

    8. The best BCG ever!

      Wonderful quality, like the rest of Cryptic coatings BCG's. The reduction in overall weight, and recoil is definitely noticeable. Expensive, but a great choice if building a carbine/rifle for self-defense where reliability and performance is most important. on 10th Aug 2015

    9. Quality BCG

      Most companies tout Quality, but Cryptic Coatings deliver with the Titanium BCG in Mystic Black! Aesthetics are breathtaking, but where it truly delivers is in performance! Smooth cycling, light weight, and did I mention it looks Beast!?!?!? on 2nd Feb 2015

    10. Impressive difference with this titanium bolt carrier group

      Received titanium BCG. Proper gas key staking, MPI marked bolt. No machining marks inside bolt carrier. Outside coating even. Remarkable weight reduction compared to standard BCG. on 12th Jan 2015