The Rapid Deploy Carbine (RDC) version is now available... "The Robinson Armament Co. SG XCR – RDC is a multi-caliber, gas piston weapon system developed by Robinson Armament Co. for U.S. Special Operations Command (SOCOM) to satisfy the requirements of the SOF Combat Assault Rifle or SCAR competition. Manufacturing by SOCOM GEAR ensures very high end quality and performance. Clocking in at about 390 FPS / 1.4j from its 120 round midcap magazine, this is most definitely an out-of-the-box skirmish ready weapon.