HK MP7 submachine gun Green gas Authentic replica Full-/semi-auto Real blowback simulates firearm Functioning cocking handle 40-rd mag also holds green gas Adjustable flip-up front metal sight Metal Picatinny rails Retractable buttstock Folding foregrip 900 rds per minute Adjustable Hop-Up Professional-grade, high-end components Heckler & Koch MP7--rock & roll with 900 rds/min. 0.24 380