jonnyshaw66Jun 17, 2008 4:19am
Im buying a PDI Precision Cylinder Set, VC. Since it is a vaccum piston and spring guide, I guess im supposed to buy a PDI SPR spring.
Another VSR Question
cagedconnerJun 17, 2008 4:24am
1. http://www.x-fire.org/etop/bolt_sp_thicker.html has charts with all the PDI springs for that set and their fps, although if its an APS spring subtract a few fps, because they can't extend to their full length in a vsr cylinder.
