RO635

Model 635 of automatic firing 9mm SMG developed by Colt, RO635 SMG was developed based on the AR-15 platform designed to chamber the 9×19mm Parabellum. An AR-15 derivative with a 10.5 inch barrel, designed base on M16A2's receiver group, so the overall aesthetics is extremely similar to a M16 rifle, while the weapon itself feels more compact like the XM177 Colt Commando. Major changes would classify this firearm as a SMG, such as the operating mechanism being changed to blowback from AR-15's direct impingement, RO635 still however fires from a closed rotary bolt. RO635 features a semi-autom...