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HW50-PG4s STEEL Tune-Kit HO (VTK-MA-010)

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A THICKER, heavier machined Steel outer-guide that brings beam strength IN-LINE quickly dampened shot harmonics with two synthetic internal damping guides. Both near equal length including our NEW machined 1 pc HELICAL GUIDE slip fitted into a high-yield, open-coil spring wire. This design allows use of both end coils for more accurate power output across same product line. As well as providing the user an easier cocking effort at full power output!  This kit engineered for all calibers small and large, old and new. Will not over shoot older warn tolerance of compression tube. ~Very quick, liner firing movement consistent deviations shot after shot. Very EZ installation!

Performance: High Output 
Power up to 12ft/lbs
Mod#: PG3sHW74511828Hth


Fitting HW50 Air Rifles or like Models.
(PG4s) 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 

High-Ouput full power up to 12ft/lbs
820fps(.17cal)/m/s CP7.9g
620fps(.22cal)/m/s G14.3g (tin pellet) 
Product Code:
Consideration for Tuning Output:
It is the owners responsibility to assure 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.