Vortek HW50 PG4 Steel Tune Kit, High Output

HW50-PG4 STEEL Tune-Kit HO

TUNE APPLICATION *NEW* PG4 HW50 STEEL Tune Kit
The ADJUSTABLE HELICAL GUIDE

Output:  moderate, smooth cocking smooth shot cycle.
Up-to 12ft/lbs depending on caliber) 

The redesigned PRO-GUIDE4 STEEL weighted tune kit having a STEEL Body provides another level of power performance.

Performance: High Output 
Power up to 12ft/lbs

CONTENTS IN EACH KIT:
Fitting HW50 Air Rifles or like Models.
(PG3s) ProGuide4-STEEL drop-in Kit
High Yield valve wire open-end power spring
Triple guides with Helical 
Lubrication for damping of metal, plastic and seals 
(OPTIONAL: Vortek Vac-SEAL26)

Performance:
High-Output full power up to 12ft/lbs
820fps(.17cal)/m/s CP7.9g
620fps(.22cal)/m/s G14.3g (tin pellet) 
 
 
Consideration for Tuning Output:
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 with virtually no pre-load force on assembly.