From Brownells . . .
Brownells unveiled the BRN-180SH complete upper – the newest addition to the popular BRN-180 line – announcing it at the IWA Outdoor Classics show in Nuremberg, Germany.
Chambered in 300 Blackout, the BRN-180SH has 10.5” barrel with 5/8-24 muzzle threads, and a gas system with three settings – unsuppressed, suppressed, and off.
The BRN-180SH retails for $999.
With the gas system turned completely off, the upper is converted into “single shot” mode, virtually eliminating sound produced by gases escaping through the ejection port or by the bolt carrier group cycling.