Brn-180(TM) Gas System Components - Brn-180 Gen 1/2 Adjustable Gas Block, 300 Aac Blackout

Replacement or Backup Gas System Components for the BRN-180(TM) Upper Receiver. Options available for all chamberings and configurations. Fixed Gas System Kit includes Standard Gas Cup & Suppressed Gas Cup Adjustable Gas System Kit includes Gas Nipple, Gas Cup and Retaining Clip Mfg: Brownells