DBoys 3-In-1 M203 short barrel version Package includes a M4-type Barrel Mount (Marui-style), and also a universal 20mm QD Mount for RIS rails Uses 40mm gas airsoft grenade shells (i.e. DBoys, CA, King Arms, Mad Bull, etc) Constructed of durable metal and ABS composite Quick installation/removal due to RIS mount Quik-Latch design NO SHELL INCLUDED SHIPPING WEIGHT 4 LBs
