<p>The Springfield Armory® Echelon Threaded-Barrel Semi-Auto Pistol with Tritium Sight is built with excellent ergonomics and built for harsh conditions. This striker-fired pistol features a COG (Central Operating Group) stainless steel chassis with fully-ambidextrous controls. A revolutionary VIS (Variable Optics System) utilizes a series of movable pins, which allow for a wide variety of low-seated, direct-mounted optics. A threaded barrel allows for use with a suppressor or compensator. The rear sight channel is cut separate from the optics plate and uses a U-notch rear sight in conjunction with a 3-dot tritium front sight. A double-zippered soft case is included.</p> <ul> <li>Striker fired</li> <li>Central Operating Group</li> <li>Ambi controls</li> <li>Threaded barrel</li> <li>Variable Optics System with movable pins</li> <li>U-notch rear sight</li> <li>3-dot tritium front sight</li> </ul>