Reviews & Ratings for Cryptic .223/5.56/.300 AAC Blackout Right Hand Bolt Carrier Group (BCG) - Complete — 54 reviews — Page 1

Well manufactured. From the gas key staking to bolt everything looks great and its well made. Shot some rounds with the BCG and worked flawlessly. That being said so far its working great. Going to the range to fully break it in.

It works great nickel boron stays clean and when it’s time to clean it it wipes right off

I've built for myself, and my fiance, 4 5.56 Ar15's, and one SBR .300 BLACKOUT, in which every single one has a full mass cryptic BCG (RANGING IN COLORS FROM GOLD TO MYSTIC MIDNIGHT). I've also purchased 2 low mass Cryptic BCG (Gold and Bronze) for my fiance and I in case we would like to mess around one day at the range and try to dial in two of our Ar's as a light mass build w our AGB in bleed off mode. There is literally no other BCG on this planet that I've come across that is superior to these, and I mean literally nothing is better. BCM (Bravo Company) makes a wonderful bolt, same with Rosco (Bloodline), and of course the JP enterprises and Geissele are top contenders as well, but still don't have the same awe factor and buttery, silky smooth action as these cryptic bcg's. They are out of the box, no lubrication, more slick and have a friction coefficient so low that without lube they are more silky than any other bcg well oil'd. Now, Bcm bcg's have a proven duty related track record, and I love those ones as well, but still had to go with the Cryptic for ease of cleaning and how amazingly smooth the action is.

BCG looks flawless, looking forward to running it in my 300 SBR build!

I’ve been extremely impressed with the Cryptic Bolt Carrier Group. The fit and finish are outstanding, and the coating is absolutely top-tier—it cleans up effortlessly and still looks new after plenty of use. Reliability has been flawless so far, with smooth cycling and consistent performance. You can tell this is a high-quality, well-machined component that was built with attention to detail. It’s a premium upgrade that actually delivers on its promises, and I wouldn’t hesitate to run it in a serious build or recommend it to anyone looking for a dependable, high-performance BCG.

Tested this in a 5.56 11.5 in suppressed gun. Had no problems cycling. It looks well made, and cleans easily. Nice purchase with the coupon.

Flawless BCG! Highly recommended! Thanks optic planet, stellar!

I have like 10 of these now. Majority black nitride and a few phosphate. They just run. Easy to clean. Haven't got a bad one yet. Like the upgraded packaging. Highly recommend.

I run this in my 300 blk and it works great i also paired it with the Giselle charging handle and they run really great together

Fast delivery. Smooth, flawless and precise. Will buy again.