FULL METAL CONSTRUCTION by CNC
Two 3 7/8" Picatinny Rails Each with 7 Numbered Slots
2 Screw Holes on Each Rail
Complete with 5 Hex Screws and Allen Wrench
fit for Marui/ICS/CA/Jing gong/CYMA G36C Series AEG
it prvoide 20mm Rail base for you install Gear.
lenght : 100mm each rail