Coated Bolt Carrier Group

Coated Bolt Carrier Group

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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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$110.00
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    1. WOW worth every penny paid.

      Purchased one of the Left handed BCG for my AR-15. Took it to the range and wow, after over 60 rounds I took the gun a part and after taking the BCG apart I was amazed that all the parts wiped off with just a rag. I did use some cleaning solvent just to be safe. What I found so exciting was the inside of the BCG group where the bolt makes contact, no powder build up. Not sure but I think the gun cycled faster. I will purchase this again. You will love it. on 27th Feb 2019

    2. very good looking and durable

      200+ rounds later and i love it. very good looking part. very effective. also, the glossy finish gets dusty with gun powder, so you’ll never forget to clean it after extreme use. on 26th Feb 2019

    3. Great product but...

      Awesome BCG looks amazing got mine in mystic black only reason I gave 4 stars is that for how much they charge which in my opinion is a little over priced that they could have thrown some kind of swag gear in with it myself personally would have loved a patch to show what hardware I'm running and unfortunately as much as I want a patch can't see me spending 8$ especially since it took me 6 months to save for the BCG being on a budget and all so other than being slightly disappointed it actually is still an amazing product on 21st Feb 2019

    4. Bronze bcg review.

      So first of all let me say that customer service was outstanding. My bolt came in flawless and smooth as all get out. After about 100 rounds I noticed some of the coating coming off at high impact points at the face of the carrier and corners of the lugs. Now keep in mind any coating will do this so don’t freak out! The bolt was easily cleaned and a little solvent was needed to break down the solidified carbon on the back of the bolt, however, it came off much easier and cleaner than a standard or even nickle bolt carrier would have. Love the product amazing coating and top quality bcg!!! on 19th Feb 2019

    5. Amazing as always

      This is the 3rd bolt carrier I have purchased and it impresses me just as much as the other two. Great craftsmanship and the coatings are perfect. Highly recommend. on 15th Feb 2019

    6. Looks Fantastic

      Great looking BCG honestly one of the best carrier's ive ever owned. Quality is top tier. on 31st Jan 2019

    7. Outstanding BCG

      I ordered the Mystic Bronze BCG, and am very impressed as are my shooting buddies. I just finished a .300 BLK Pistol build and this thing ran like butter! Supper slick and easy to clean off by wiping with a rag to take off any carbon. Absolutely love it, plus the looks of admiration and envy from my buddies does not hurt either. Looks and runs great. I will definitely buy another one from Cryptic on another build, another color/coating just to have a little variety. on 23rd Jan 2019

    8. Simply The Best! My ONLY Choice for Bolt Carriers

      This my second Cryptic Coatings BCG and as with my first Cryptic Coatings BCG I'm extremely pleased with its quality, smooth operation, and ease of cleaning (micro-fiber cloth is usually all it takes - and they supply the micro-fiber cloth). Cryptic Coatings is first class and a by far have the best product out there. on 22nd Jan 2019

    9. Outstanding, Well Built and Super Slick!

      This BCG is by far the most superior setup compared to anything else on the market. Zero issues with durability or reliability at with 2k+ rounds on it. Cleans up with a microfiber towel for the most part, might need a brush around the rings for the stubborn build up. Will continue to upgrade all of my setups to include Cryptic Coatings BCG's. on 28th Dec 2018

    10. My favourite bolt carrier period.

      Here's the bottom line period. I love to build and shoot AR platform rifles. I don't like to clean them though. So, I buy the nitrided carriers and run them until they fail before cleaning them. I have at least 3 right now on 3 different rifles. Haven't cleaned one of my AR's for probably 2 years. Won't even consider buying a different carrier. on 16th Dec 2018

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