T-N.T. Studio APS-X System HS+ Air Cushion Inner barrel for AEG / GBB Series (303mm) Length-(mm)_490 Replace the standard valve knocker

Replace the standard valve knocker of airsoft pistol magazine

Zipper Closure

both the radio communication sound and the environmental sound is coming through the earpiece

03mm Black Python Tight Bore Barrel for KSC G17/G18 GBB

Compatible with any picatinny railed surface

T-N.T. Studio APS-X System HS+ Air Cushion Inner barrel for AEG / GBB Series (303mm) Length-(mm)_490 Replace the standard valve knockerT N. T. Studio APS X System HS+ Air Cushion Inner barrel for AEG GBB Series (303mm) Stainless Steel Construction Suitable For AEG GBB Rifle Able to increase the accuracy and consistency of your airsoft gun Length: 303mm