Brownells Brn-180s? Ar-15 300 Blk Complete Upper Receiver Assembly

$899.99

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BRN-180S Gen2 Now with 300 Blackout Configuration! Designed in conjunction with PWS & FM Products, the Brownells BRN-180S Complete Upper Receiver is the newest iteration of the BRN-180 Upper Receiver, which was inspired by the Armalite AR-180 of the 1960s. The BRN-180S shares a large chunk of components with the BRN-180, but introduces key features to improve reliability and usability in a short configuration. The BRN-180S is obviously shorter than the standard BRN-180. The 300 Blackout required a shorter system to ensure reliability with a wide variety of supersonic and subsonic ammunition. This resulting shorter system al Mfg: Brownells For Silencer or New Muzzle Device Installation: 1. To Remove Flash Hider Turn jam nut clockwise, as if looking at the muzzle, to loosen from the flash hider. Unscrew flash hider from muzzle by turning counterclockwise. 2. Tighten the jam nut, turning clockwise,

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