APS-X Hop Up System 6.03 Rifling Inner Barrel for GBB - 407mm
This brand new APS-X T-N.T APS-X Hop-Up System will push the barriers and have your GBB surpass its previous range up to 10 to 20 meters plus better grouping. It'll stay accurate as the 6.03mm inner barrel and Hop Up rubber is included in the set up!
T.N.T APS-X Rifling 6.03 Inner Barrel will give you the best air effectively.
T.N.T APS-X expansionary bend(like a funnel) Hop up Bucking will give you the best grouping.
T.N.T drop in kit will ensure that your weapon's effective range increase up to 10 to 20 meters or more with better grouping in a second!!!!