HW50-99 PG4-DELRIN Glide Tune-Kit HO

TUNE APPLICATION:HW50, 99 PG4 DELRIN GLIDE Tune-kit. Full-Power    Performance with VacSEAL26:High-Output full power up to 11+ft/lbs./15 JoulesProduct Code: PG4D745118-28Hth CONTENTS:PG4 DELRIN MAIN GUIDE+ 2 DELRIN INNER GUIDES+TOPHAT DELRIN GUIDE   High Yield valve wire power springLubrication 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. 1000 F.A.S.L. x .029 = 29fps approx.Joules= .7475=ft/lb. Easy, do-it-yourself some pre-load force on assembly. Spring compressor recommended.