Umarex GLK 17 Gen4 Blowback CO2 BB Pistol – .177 Caliber

The Umarex GLK 17 Gen4 is a CO2-powered blowback BB pistol designed for realistic training and plinking. Its blowback action cycles the slide with each shot, delivering authentic recoil simulation while running on standard 12-gram CO2 cartridges. This pistol mirrors the feel and manual of arms of its firearm counterpart, making it useful for familiarization drills and backyard target practice.

Built with a polymer frame and metal slide, this pistol balances durability with realistic weight distribution. The .177 caliber steel BB magazine holds 18 rounds and drops free like a firearm magazine. Velocity reaches approximately 410 fps, providing flat trajectory at typical plinking distances. White dot sights are adjustable for windage. CO2 cartridge installs in the grip.

• Action Type: Semi-automatic blowback
• Power Source: 12-gram CO2 cartridge
• Caliber: .177 steel BB
• Velocity: ~410 fps
• Capacity: 18 rounds
• Overall Length: ~8 inches
• Weight: ~1.6 lbs (unloaded)
• Use: Target shooting, training drills, plinking

Note: Always wear eye protection. Treat this airgun with the same safety practices as a firearm. Not suitable for pest control. Check local laws regarding airgun discharge.