Ultimate SRS Upgrade Kit (570mm Barrel 3.0–3.5 Joules) SP-TAC-WYS0116-BK This airtight piston head MUST

This airtight piston head MUST be used together with the upgraded loading nozzle

black anodized

3 steel mid sections

This Flat R-hop bucking does not have an internal patch

Fire Mode: Semi-Automatic / Automatic / Safe

Ultimate SRS Upgrade Kit (570mm Barrel 3.0–3.5 Joules) SP-TAC-WYS0116-BK This airtight piston head MUSTThe Ultimate Stalker Upgrade Kit to turn your Silverback SRS into a true sniper beast. This upgrade kit makes your SRS accurate, consistent, and silent! Load up your magazines and dominate the field like never before. The package includes the following Stalker upgrades: Stalker SRS Kraken Hop Up Chamber Ultimate Edition Stalker SRS Scorpion Piston Ultimate Edition Stalker Morpheus 570mm Inner Barrel Stalker SRS Fluted Teflon Cylinder Stalker Official