The Brownells BRN-180: A Complete Look Inside and Out
The BRN-180 is a short-stroke gas piston design based on AR-180. The upper receiver will work on any Mil-Spec AR-15 lower, adding to its versatility. […]
The BRN-180 is a short-stroke gas piston design based on AR-180. The upper receiver will work on any Mil-Spec AR-15 lower, adding to its versatility. […]