KAK Industry KG15 Glock Billet Lower Receiver- Stripped * Glock mag compatible 9mm or similar small frame Glock magazine calibers- 40 Smith & Wesson, 357 Sig etc. AR15 pistol caliber lower receiver * Precision CNC machined from aircraft quality aluminum * Uses OEM Glock or aftermarket magazines * M4/M16 style fire control group pocket * Type 3 Class II hard coat anodized - deep matte black Pictogram selector markings * Accepts all mil-spec sized lower receiver components, excluding magazine catch (included) * Model: KG15 Caliber: MULTI * Incudes ejector and magazine release * Flared magwell for faster & easier reloads * Last round bolt hold open * Oversized integral trigger guard * Threaded Bolt Catch Screw Hole * Weight 11.2 oz * Compatible with milspec AR15 upper receivers