Olympic Arms K40 40Sw Glock Lower Flattop

Pistol cal 40 S&W in an AR-15 platform with a purpose-made lower receiver that uses Glock magazines. Receiver Material 7075 T6 Aluminum Forged Receivers Machined By Olympic Arms. Receiver Finish Black Matte Anodized Receivers Parkerized Steel Parts. Action Blow-back Operated Semi-automatic Action. Upper Type A2 w/ fully adjustable rear sight. Front Sight Elevation adjustable post w/ bayonet lug. Handguard Fiberite carbine length caps. Barrel 16'' button rifled 416 stainless steel.Chambering 40 S&W. Bore Long-life non-chromed bore. Twist Rate 1x16. Muzzle A2 flash suppressor. Stock M4 fiberite 6-point collapsible. Length 31.75''. Weight 6.86 lbs.