Features:
Fully Licensed Product
Stamped Steel Receiver
New Design & Reinforced PSG-1 Bolt Set
Easy Hop-Up Adjustment
Compatible with Umarex / VFC G3 GBBR Magazines
Real Wood Pistol Grip
Can Be Dry-Fired
Heavy Recoil Impulse
Infornmation:
Model: PSG-1
Materials: Steel, Zine Alloy, Nylon, Rubber
Length: 1220/1280mm
Weight:5200g (11 pounds)
Power Source: GBB
Action: Semi/Auto
Ammo Type: 6mm airsoft BBs
Ammo Capacity: 20 round magazine
FPS: 400
Bunker Tech Upgrades
Maple leaf gbb 6.02mm Inner Barrel
Maple leaf  High Accuracy Hop-up Bucking- Internal Parts Adjust
All function checks, to avoid common tolerance issues.
BB weight for optimal performance: 0.36 gram 
PS:
5 rds Magazine for Umarex PSG-1