Setting a new standard for modern striker-fired duty pistols with a host of patent pending features this modular pistol is designed around a robust stainless steel chassis. Engineered with superior ergonomics and built to withstand the harshest conditions the Low Capacity Echelon 4.5 9mm pistol is configured for residents located in restricted states requiring a 10-round capacity. In addition this fully ambidextrous pistol employs a revolutionary optics mounting system that allows for unparalleled adaptability with a broad range of optics. - Caliber 9mm - Color Black - Barrel 4.5 Hammer Forged Steel Melonite� Finish 1:10 - Slide Billet Machined Melonite� Finish Optics Ready - Frame Black Polymer -Sights Tritium / Luminescent Front Tactical Rack U-Dot Rear - Recoil System Captive - Grip Width 1.2 - Magazines (2) 10-Round - Weight 23.9 oz - Length 8 - Height 5.5