So for BRN-180 builders, if you choose a BRN-180 Lower, there are multiple options for your stock attachment. These include using an AR folding tube adapter or a Picatinny adapter to accommodate a SIG MCX folding stock, which, incidentally, derives its design from the original AR-180 system...
Two Modernized Classics: Brownells BRN-180 Gen2 AR Upper and KE Arms KP15 AR Lower but no new complete rifles were available until 2019, when Brownells introduced the BRN-180 upper, and a matching lower, bringing the AR-180 design up... O Volk - 《Small Arms Review》 被引量: 0发表:...
Rather than trying to build a clone rifle or reproduction of the original AR-18/AR-180 Brownells decided to do something a bit different. It decided to build an upper receiver as it felt it would currently appear, and it is designed to fit onto a standard AR-15 lower receiver. ...
The action had to be shortened slightly to work with standard AR lowers, but it doesn’t appear anything was lost when doing so. The fit between the BRN-180 upper and any of thelowerswe tried was superior to the fit of the original AR-180s, which are, to put it nicely, rather slop...