Features:
This products are available to fit with  VFC、KJ、WE、MARUI、TP22、 AAP01 Glock series Magazine.
14mm Reverse Threaded Outer Barrel (Excluding Flash Hider/Thread Protector)
Compact AL6061 60mm M-LOK Handguard
Picatinny Tactical Rails at Top and Below
Picatinny Tactical Rail End Cap
Ambidextrous Charging Handle, Magazine Release Button, Bolt Release Button, Fire Selector Switch
Universal AR GBB Grip
Universal GBB Rubberized Magazine Included
Universal GBB Precision Barrel
Lightweight Gun Body Constructed from Nylon Fiber Reinforced Polymer
Metal Tactical Adjustable Stock available as an option
Infornmation:
Model: GHM9 COMPACT-G PCC
Materials: Steel, Zine Alloy, Nylon, Rubber
Length: 360mm
Weight:1579g (5.5 pounds)
Power Source: GBB
Action: Semi/Auto
Ammo Type: 6mm airsoft BBs
Ammo Capacity: 25 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:
30 rds Gas Magazine For B&T GHM9