MEAN Arms Bearing Delay Upper Receiver Roller Delayed Blowback 9mm MP5 Style! https://greyhive.com/videos/watch/a93ccfaa-9c45-4ea9-a384-1588cc8912b9 SNW range review of the MEAN Arms Bearing Delay Upper Receiver. It fits any standard AR-15 lower receiver and it provides HK MP5 style roller delayed blowback action and all of the smoothness and quietness that comes with it! What a fantastic product; it's up there at the very top for quietest, smoothest 9mm I've ever shot. Plus the machining, engineering, fit, finish, and reliability were all flawless. Very nice! Shooting News Weekly at Copperhead Creek Shooting Club. Tue, 27 Oct 2026 19:34:02 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://greyhive.com MEAN Arms Bearing Delay Upper Receiver Roller Delayed Blowback 9mm MP5 Style! https://greyhive.com/lazy-static/avatars/5746210d-885d-44b2-9be0-92bf1e4d34df.webp https://greyhive.com/videos/watch/a93ccfaa-9c45-4ea9-a384-1588cc8912b9 All rights reserved, unless otherwise specified in the terms specified at https://greyhive.com/about and potential licenses granted by each content's rightholder.