The Heckler and Koch is an authentic HK replica with Gas Blowback power. This double action pistol has a moving hammer to add realism and fixed tactical sights. Licensed Trademark of Heckler & Koch GmbH
330 FPS with .20g BB
Green Gas Powered
Full Blowback Action
25 Round Drop Free Magazine
Adjustable Hop-Up
Accepts Replacement Magazine 2275003
Magazine SKU Number 2275003
Notes: The HK USP GBB takes rebuild kit SKU number 2211103 and the magazine takes rebuild kit 2211104