HW50-99 PG4-DELRIN Glide Tune-Kit 10j/7.5ft/lbs.

CONTENTS:
PG4 DELRIN MAIN GUIDE+ 2 DELRIN INNER GUIDES+TOPHAT DELRIN GUIDE   
High Yield valve wire power spring
Lubrication for metal, plastic and seals 

Installation: For Consideration when tuning power:

It is the owner's responsibility to ensure legality of their air gun power output. Vortek’s Location of testing is 578 Feet Above Sea Level. (F.A.S.L) For every 1000ft above or below will be approximately .029 difference in velocity, thus foot pound (Ft/lb., Joules) of shooting energy.