Based on the classic M1911 design the 1911 EMP (Enhanced Micro Pistol) uses smaller cartridges than its predecessors 45 ACPs. The redesign gives this semi-automatic single-action only pistol a grip width of 1.12 and length of 6.6. Features include a 3 stainless steel match grade barrel with fully supported ramp low profile three dot sights and dual spring recoil system. The 9mm has a 91 capacity and weighs 27 ozs the 40 SW has an 81 capacity and weighs 33 oz. Caliber 9MM - Finish Matte Blue Frame Stainless Steel Slide - Action Single Action - Stock Thinline Cocobolo Grips - Sight Fixed Combat Tritiun Night Sights - Barrel Length 3 - Overall Length 6.6 - Weight 27 oz. - Capacity 91 - # of Mags 3 Short-action Magazines - Safety Ext Ambi Beavertail Grip Integral Locking Sys