Guns Modify Extreme Custom Magazine Lip Rubber Seal for Tokyo Marui G Series Gas Mag. (#2 +0.20 or +0.25 / 70 inch) - 4pcs/set Capacity-(rds)_300 Rounds At first glance it looks

At first glance it looks like one of those Patriot M4 pistols with free float rails

Sharp finish achieved by high-precision CNC cutting

Cylinder Head

It will make your RAS and upper receiver connected tightly

Guns Modify Extreme Custom Magazine Lip Rubber Seal for Tokyo Marui G Series Gas Mag. (#2 +0.20 or +0.25 / 70 inch) - 4pcs/set Capacity-(rds)_300 Rounds At first glance it looksGuns Modify Extreme Custom Magazine Lip Rubber Seal for Tokyo Marui G Series Gas Mag. (#2 +0. 20 or +0. 25 70 inch) 4pcs set Rubber Made Smoother internal transition improves gas flow Suitable for Tokyo Marui G Series Airsoft Gas Blow Back GBB Pistol Magazine (#2 +0. 20 or +0. 25 70 inch) 4 Piece in Package