This stock kit is what Hurricane and Tippmann X7 owners need to put a UMP-style stock on your marker and gain the advantage of running the air through the rear of your marker rather than through the traditional ASA
By lowering this front (counter) pressure
***Does Not Include Pistols or Magazines Shown in Photos***
thus preventing a chop
Swap it out with another length
CMI Sizer Set of 5 from .682 to .694, Spyder Threads Helmet This stock kit is whatSizer are designed to match the ball size to the barrel. The type of ball, weather and manufacturers tolerances can all have an affect on a paintball size. To optimize your barrel performance it makes sense to have the right sizer for the ball used that day. 5 Sizers, they are: . 682 . 685 . 688. 691 . 694 Compatible Markers: This barrel is compatible with 32 Degrees, Ariakon, Armotech, Brass Eagle, Diablo, Dragun PMI, GT Commandos, IconZ, Inferno,