Barrel length: 16.25 – Barrel Twist: 9mm 1:10 – Overall length: 33.0 – Overall length (Collapsed Stock): 29.5 – Breakdown dimensions with barrel removed: 17.25 – Caliber: 9mm – Magazine configuration: Glock pistol style – Left or right handed ejection – Weight: 5.5 lbs – Coating: Hard Anodized – Action: Semi-automatic direct blow back – Safety: Sliding safety and integrated child trigger lock – Performance: 9mm Wolf ammo 1270 FPS – Includes: – One Glock Style magazine – Upper and lower rails – Also relevant: made of aircraft aluminum