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Coated Bolt Carrier Group

Coated Bolt Carrier Group - BLEMISHED

Take advantage of our attention to detail.... 15% off in fact. These blemished bolt carrier groups didn't meet our expectation therefore we are passing some savings on to our customers.

Need help on a coating?

 

The fit and function is 100% true to our normal bolt carrier groups, these simply just have some minor cosmetic blemishes. They also carry the same lifetime warranty for form, fit and function as our non-blemished BCG's.

15% off has already been applied to the pricing on this page.

Blemishes may include one or some of the following:

  • Poor logo marking, or missing logo.
  • Imperfect polishing, contained mostly on the inside of the carrier, causing a non mirror-like finish.

 

 

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:

  • Mil-Spec BCG Machined from 8620 Aircraft Quality Steel and heat treated to 60-61 RC
  • Mil-Spec Chrome Lined Carrier Interior
  • 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 - 11.55 oz.
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$93.50
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    1. Beautiful product!

      I ordered a "blemished" Mystic Bronze, and it looks just as good in person as the pictures on the website. I can't even see the imperfection that they're calling a blemish. on 8th Apr 2019

    2. Wheres the blem???

      Ordered a "blemished" mystic black bcg and it took forever to find the "blemish". Only with a flashlight. Looking down the inside of the rear of the carrier can you see it. Absolutely recommend this bcg, and will.be purchasing more for my next builds. Costing is extremely slick, cycles smooth as can be and even after a few mag dumps it was cool to the touch. Outstanding workmanship and all around great experience dealing with cryptic coatings. on 8th Apr 2019

    3. Amazing products. Love

      I have been researching and wanting to buy these bcg but never convince myself that I could pay $300+ for a bcg. However, I found the blemished section and I fell in love. These bcg rock, their customer service rocks and I am a very happy consumer. Their agent who I spoke with was helpful and very accommodating. Thanks so much!! on 4th Apr 2019

    4. The Unblemished Blemished Bolt

      I decided to go with an “blemished” bolt for a small discount. It was well worth it. The BCG is well made and the coating makes it very slick. I’ve heard you can run it with no oil but i suggest to keep it moist. You can tell from its heft that it’s of a higher quality and the color just brings a little excitement to your rig. I’ll be buying another one soon. on 3rd Apr 2019

    5. First Purchase...LOVE IT!

      This is my first purchase from these guys for my 6.5CM build. They must use microscopes in the quality control dept. I can't find a blemish anywhere! I will be buying one for my 5.56 and all future builds. on 23rd Mar 2019

    6. Perfect

      Received in a timely manor and very happy. I see Cyrptic coatings being my go to place for Bolts. on 20th Mar 2019

    7. Beyond Awesome

      My first purchase, and I know it will not be my last. phenomenal quality. I put it in a new fortis billet receiver set, and works smoother than silk. great BCG on 15th Mar 2019

    8. Awesome

      I couldn’t even find a blemish on the inside or outside. Absolutely beautiful. Dry BCG feels like a normal BCG with lube. Have not gotten the chance to shoot with it yet, but know I will not be disappointed. on 8th Mar 2019

    9. No visible blemish

      The other reviews are accurate in that the “blemished” BCGs are, at least visually, 100% void of any defects on 6th Mar 2019

    10. 2nd purchase

      This is my second Mystic Black .223/5.56 BCG, blemished. Fantastic product, the coating is not only beautiful but makes cleaning so much easier. Carbon can't really stick to the surface so instead of building up, it almost self-cleans as you continue firing. I am very confident if I ever have any issues, it will likely not be due to the BCG. I have shot dozens of service rifles int he Marines for over 12 years and these things would save taxpayers millions in rags and CLP alone!

      Regarding buying blemished, I can't find anything wrong with it. I am convinced the "blemished" section is just a way for Cryptic Coatings to be generous and give everyone a nice fat discount. Thanks!       on 3rd Dec 2018

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