Guarder SR-16 BoreUp Full Gearbox Set (Fit SP130-170) GBB Rifle DYTAC M4 Receiver Extension w/

DYTAC M4 Receiver Extension w/ Quick Detach Sling Swivel  CNC Aluminum made  Design for mount on Rear of Receiver  Able to attach any tactical sling on it  Include QD sling swivel x 1

but due to its popularity among users

Storm Grip with Heat Sink End Set (Black)

50 rounds Gas Magazine

Aluminum Die Castng Construction

Guarder SR-16 BoreUp Full Gearbox Set (Fit SP130-170) GBB Rifle DYTAC M4 Receiver Extension w/A complete Gearbox Upgrade kit includes ALL parts for upgrading your Airsoft Electric Gun AEG Infinite Torque Up Version Guarder made this kit with all suitable parts to super tune up your AEG Rifle The combination of difference parts allow an optimal result & performance Hard and rigid material used, including S304 Stainless Steel, Brass, Polycarbonate, Aluminum, Acetal and Steel As always, upgrading AEG require necessary skill & technique to