Features
Lightweight, rugged injection molded polymer frame w/ aluminum alloy slide
GLOCK accessory rail
Dual Power, CO2 Ready Out of the Box
Green Gas Version, Comes with 18 Round Gas Magazine
Ambidextrous Slide Release
Comes with 4 Optics Plate
Functional GLOCK trigger safety
Fully licensed by GLOCK w/ complete rollmarks on the slide and logos molded to the frame
Infornmation:
Model: G17 Gen5
Materials: Steel, Zine Alloy, Nylon, Rubber
Length: 230mm
Weight: 660g (1.5 pounds)
Power Source:  Gas
Action: Semi / Auto
Ammo Type: 6mm airsoft BBs
Ammo Capacity: 20-round full-size metal 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:
18 rds Gas Magazine for Umarex SRC Glock17