G&P Gas Charging Collapsible Tube for Magpul PTS UBR Stock
Steel & Aluminum Construction
Only For Marui Shotgun
Only For Magpul PTS GBB UBR® Collapsible Stock
Grip Material: PA+GF
Including:
M870 Buttstock Adaptor (CNC Process) (Marui)
WA TD M16 Grip (Black) (WP46B)
WA G.C. Stock Pipe
Gas Charging Cartridge (Marui)