Maruyama FMG-9 Airsoft GBB Part-Type_Rear Chassis First Factory Custom Hop Up

First Factory Custom Hop Up Chamber for Marui MWS M4A1 Airsoft GBB Rifle

tactile Windage & Elevation adjustments

0 inches by 9

including red tracer BBs

Maruyama FMG-9 Airsoft GBB Part-Type_Rear Chassis First Factory Custom Hop UpReal Steel Background The FMG 9 (Folding Machine Gun 9mm) is one of the most unconventional and conceptually daring firearm designs of the modern era, First publicly demonstrated at the SHOT Show in 2008. The core concept was deceptively simple yet revolutionary ? take a Glock 18C select fire pistol and enclose it within a polymer chassis that, when folded, resembled nothing more than an innocuous rectangular carry box, and when deployed, unfolded