Posted 11 Jul 2016 We offer both a USC & UMP mag release on our website. Mag releases are a very common repair & replacement part as they are prone to breakage & wear. These listings are quick & easy to install, so be sure to check them out! Order on our website or by phone. WWW.HKPARTS.NET || 801.987.3494 __________ UMP Paddle Mag Release || $15.95https://www.hkparts.net/shop/pc/UMP-Paddle-Mag-Release-12p810.htm USC Carbine Mag Release || $19.95https://www.hkparts.net/shop/pc/USC-Carbine-Mag-Release-12p2196.htm __________ Thanks for looking! Click here to visit our website to view more HK parts & accessories. West Jordan, Utah, United States Share this post Link to post Share on other sites