Maple Leaf 6.04 Crazy Jet Inner Aerodynamic Barrel for Marui / Stark Arms / WE / KJW GBB Pistol (138mm) Category_AEG M4A1 Carbine This is just resembling the

This is just resembling the automatic feature of SPAS 12

Tokyo Marui M4 CRW AEG (High Cycle)

Scope Base is ready to install any rifle scope

Plastic Carrying Case

-- Metal Hop up version

Maple Leaf 6.04 Crazy Jet Inner Aerodynamic Barrel for Marui / Stark Arms / WE / KJW GBB Pistol (138mm) Category_AEG M4A1 Carbine This is just resembling theSuitable for Marui SA WE KJW compatible GBB pistols 138mm Length (G17L , WE Desert Eagle. 50 GBB) 6. 04mm~ Inner Diameter Pressure diverting design, openings in stainless front sleeve divert high pressure gas, surrounds actual barrel opening to guide exiting BB along its flight path, resulting Copper Build Material < All Available Length >