HK USC Carbine- HK UMP 45- HK UMP 40- HK UMP 9mm Parts and Accessories

Get your HK UMP parts and accessories at We also carry HK USC CARBINE, 45/40/9MM. is the largest supplier of HK UMP related parts, new and used, with the highest quality around. Our large selection includes HK UMP bolt groups, lower and upper parts, stocks, grips, magazines and sights.