The Glock G37 is a polymer-framed pistol with a built in accessory rail. The pebbled grip is designed for minimal slippage and greater comfort and to this end features a checkered front and back strap finger groves and a thumb rest on each side of the frame. Chambered in 45 GAP with a barrel length of 4.5 the Glock G37 weighs just 35.5 ounces when loaded. Suited for multiple purposes this gun is adept enough to handle whatever task you set to it. Details Glock PG3750201 G37 Gen 4 Double 45 Glock Automatic Pistol (GAP) 4.48 101 Black Interchangeable Backstrap Grip Black"/\