These carriers DO NOT include a cam pin, firing pin, or bolt. Please add the other components to your cart if you need them as well.
 
Bundle price will be applied automatically when adding separate BCG components.
 
Adjustable low mass BCG manufactured by Rubber City Armory
 
We are finally able to bring what we have found to be the optimal carrier for all 300blk platforms!
 
This carrier comes pre-installed with Rubber City Armory’s patented gas key for gas adjustment. This adjustment is infinite and is locked by a second set screw which sits behind it.
 
No need to re-zero, no need to disassemble your upper, no need for special long Allen keys that can reach into your handguard, and best of all, no commitment!
 
To top it off, we have these assembled with Ned Christiansen’s OCKS (Optimized Carrier Key Screws) for a complete and bulletproof installation!
 
This set screw locking method is very well proven and is present on Q’s Honey Badger gas block.
 
The gas key on this BCG also supports the use of POF’s roller cam pin if you would like to reduce friction even further!
 
These BCG’s are nitrided by H&M Black Nitride.