CYMA Sport M16A4 RAS Full Metal Airsoft AEG w/ Lipo Ready Gearbox Marker Parts & Upgrades The Core Control Back is

The Core Control Back is finished under the most extreme tolerance specifications

The back sold here is the insert ready back

While the Virtue CrownSF will always remain the best performing speed feed in paintball

These are brand new

CYMA Sport M16A4 RAS Full Metal Airsoft AEG w/ Lipo Ready Gearbox Marker Parts & Upgrades The Core Control Back isFeatures Aluminum alloy upper and lower receivers and barrel assembly Full metal 20mm railed handguard allows for easy addition of weapon lights, grenade launchers or other accessories Adjustable front and rear sights Removable carry handle exposes 20mm accessory rail, ideal for mounting optics or other accessories Reinforced V2 gearbox Fixed stock allows for larger battery use FPS Range: 400 420 Color: Black Length: 1000mm Weight: 3240g Inner Barrel: