Classic Army Proline M4 Carbine Airsoft AEG Airsoft Gun Parts & Upgrades and this combination of materials

and this combination of materials gives the gun a robust feel without restricting range of motion during intense Airsoft missions

Aluminum barrel back-compatible with all original Freak Barrel Kits

Thermal Insolated Optics Compartment (or a cooler for tasty beverages

This allows you to have a flow of air across the lens to help avoid fogging

Floating Stock

Classic Army Proline M4 Carbine Airsoft AEG Airsoft Gun Parts & Upgrades and this combination of materialsThe Classic Army Full Metal M4 Carbine AEG Airsoft Gun is a solid choice for any player looking for a solid M4 platform. Externally, the upper & lower receiver are made of full metal. This gun is already rear wired to the crane stock, making it a great platform for future rail upgrades. The front triangle sight has a side sling point making it great for two or three point sling set ups. A top rail allows for the installation of rail mounted optics.