KTW ITHACA M37 NEW FEATHER LIGHT umarex VERT Stock System is a

VERT Stock System is a PDW Stock (Battle Arms Development Licensed) for the WA System M4 GBBR

Pull down on the disassembly lever and move the slide forwards off the frame

If you check carefully

3 GBB Pistol

40 rounds M4 Style Gas Magazine

KTW ITHACA M37 NEW FEATHER LIGHT umarex VERT Stock System is aHigh Quality Faithful Replica Features Tube Magazine for High Capacity Lightweight Construction Made in Japan Magazine Compatibility Only with KTW Ithaca M37 Tube Magazines Brand KTW Color Black Originating Armory ITHACA Model M37 Capacity (rds) 46+6 Power (fps) 300 Power Source Spring Shooting Mode Pump Action Blowback No Hop up ADJUSTABLE Net Weight (kg) 1. 46 Length (mm) 920. 0 Content Included KTW Ithaca M37 New Feather Light Material Plastic