The Heckler and Koch is an authentic HK replica with gas blowback power. Fully functional design makes this perfect for training. This officially licensed airsoft pistol features realistic blowback action and authentic cocking functions for a familiar and fun shooting experience.This double action pistol has a moving hammer to add realism and fixed tactical sights Features a polymer frame, metal alloy slide, adjustable hop-up, lower accessory rail, combat sights and more!
Key Features:

• Green Gas powered
• Blowback Action
• Integrated accessory rail
• Drop Free 25 Round Magazine
• Shoots BBs at 330 fps

Umarex H&K USP GBB Blowback Airsoft Pistol (Black) Specifications:

• Action: Semi-Automatic
• Power Source: Green Gas
• Caliber: 6 mm BBs
• Capacity: 25 rds (BBs)
• Velocity: 330 FPS
• Sights: Fixed
• Safety: Manual
• Weight: 1.9 lbs.
• Overall Length: 8"
• Barrel Length: 4"