"The original Echelon set the benchmark for service-weapon performance. Now, the Springfield Armory Echelon 4.0C Comp Semi-Auto Pistol with Gear Pac is here with all the hallmarks of the full-sized model but in a compact package that's built for concealed carry. The 4.0C is shorter at the frame and muzzle, so it stays hidden beneath layers. Like the original, it's built around the Central Operating Group that can be easily moved between grip modules in seconds and features the Variable Interface System for easy attachment of over 30 red dots without the need for an adapter plate. The 4"" cold hammer-forged, Melonite-coated barrel shaves half an inch off the original's length, but still puts your shots right where you want them. Plus, an integral compensator helps reduce muzzle rise for faster follow-up shots. This Gear Pac model includes a Viridian RFX11 Green Dot Optic, 4 magazines, and soft carry case. Compact variant of the Echelon Variable Interface System for red-dot attachment with no adapter plates Central Operating Group allows for changes in grip module, etc. Cold hammer-forged, Melonite-coated barrel Integral compensator for improved recoil control Ambidextrous controls Billet machined slide with Melonite finish Gear Pac includes Viridian RFX11 Green Dot Optic, 4 magazines, and soft carry case"