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Reviews & Ratings for Cryptic .223/5.56/.300 AAC Blackout Low Mass Bolt Carrier Group (BCG) - Complete — 12 reviews

(12 reviews)
Cryptic .223/5.56/.300 AAC Blackout Low Mass Bolt Carrier Group (BCG) - Complete
Cryptic .223/5.56/.300 AAC Blackout Low Mass Bolt Carrier Group (BCG) - Complete
As Low As $285.00 Save Up to $15.75
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Most Helpful Positive Review Great color, low weight, build quality!
The Mystic Bronze an awesome color and looks great on my AR 15 build. Due the low weight of this BCG the weight of my build came under 5.20 lbs complete. I am impressed with the quality of this BCG! The BCG cycled perfectly with carbine length gas block and H2 buffer spring on my first firing my AR build I pieced together.
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smooth low mass bcg

by Kp, Verified Owner from OK, United States Written on May 31, 2026
I love it in my 300 blackout. Very smooth low mass bcg
Would recommend: Yes
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Cryptic coatings lowmaa BCG

by tone, Verified Owner from WA, United States Written on April 7, 2026
This thing is awesome, Ib used it in 4 of my ARs, one 10.5" 300BLACKOUT, one 16" 300BLACKOUT, one 12" 5.55 and one 14.5 BCM 5.56. it worked flawlessly I n all with no changes to the buffer or buffer springs... It was noticeably lighter recoil impulse and noticeably faster, used with my Franklin armory binary trigger in the 12" 5.56, ran perfectly.
Pros:
  • Looks awesome, runs awesome wipes clean with no
  • Looks great, runs great, cleans up with no solvent or oil
Cons:
  • Little spendy
Best Used for:
  • All ARs
Would recommend: Yes
Was it helpful to you? Yes | No
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Great purchase

by Annoyed, Verified Owner from MN, United States Written on March 19, 2025
Runs great, no issues installing. This is a great option for custom light weight builds.
Would recommend: Yes
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beautiful LMBCG

by Mark Kuehn, from SC, United States Written on March 11, 2025
This is my second cryptic low mass bolt carrier group. It is made very well, and is buttery snooth when charging your rifle. Its super easy ro clean, and to maintain all around. A dmall amount of pil is needed as this polished bilt carrier group already has a low friction coefficient to begin with. A++. One of the best out there IMO.
Would recommend: Yes
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Cryptic Coating FTW!!

by JWelder10, Verified Owner from WI, United States Written on March 6, 2025
As my third BCG from cryptic what can I say. I love them, from smooth cycling to easy peasy cleaning!
Would recommend: Yes
Was it helpful to you? Yes | No
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Low weight less recoil

by Shaun, Verified Owner from MD, United States Written on January 17, 2025
I paired this with a silent capture spring on a 300 blackout. Also with a very nice trigger. It was amazing. Like playing a video game with bullets at the range. Zero recoil
Would recommend: Yes
3 of 3 found the following review helpful.
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Cryptic coatings Yay!

by Chris, Verified Owner from NJ, United States Written on January 14, 2025
Beautiful finish and light. Be sure to run an adjustable gas block
Would recommend: Yes
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Bad packaging

by D, Verified Owner from SC, United States Written on December 24, 2024
The light weight bravo company cryptic coated bcg is awesome and I got it from these guys at a bargain. But the packaging was like what dollar store toys come in. Just thin cardboard with a flimsy plastic wrap. Abe my bcg was out of it when I opened the box up. I’m sure that was because the shipping carrier’s are not delicate handed people. I bought mil spec bag’s that came in a thick cardboard box with bubble wrap around it. I hope optics planet sees this and makes that change to ensure their customers get a protected product from now on.
Pros:
  • Great discounted bcg
Cons:
  • Bad packaging from seller
Would recommend: Yes
Was it helpful to you? Yes | No
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Gold Low Mass 5.56

by Buck, Verified Owner from TX, United States Written on November 9, 2024
Initial impressions are very good. Parts are very high quality and the weight savings over a standard BCG is significant. The finish is flawless.
Would recommend: Yes
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Best bcg I've ever used

by Brian, Verified Owner from TX, United States Written on October 10, 2024
I love these cryptic coating bcg. The coating is next level and I haven't had one fail. Ready to clean, just wipe off. Worth every penny
Would recommend: Yes
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Last updated 2025-11-12 UTC.