Features:
High strength hard polymer lower receiver / frame
Front and Rear Sight (with Fluorescent Function)
Threaded barrel extension for mock suppressor / muzzle attachments
Frame With 20mm Under RailNon-Slip Texture Grip With We Marking
Quick Aim green-dot front and rear sights
Hard-kick blowback action lends this pistol a very realistic feel
Infornmation:
Model: PX4C
Materials: Steel, Zine Alloy, Nylon, Rubber
Length: 155mm
Weight:750g (1.7pounds)
Power Source: Green Gas
Action: Semi
Ammo Type: 6mm airsoft BBs
Ammo Capacity: 20 round magazine
FPS: 300
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:
Gas Magazine for WE PX4C