TX200 PG4 STEEL Tune-Kit 12f/b-16J

Fitting Air-Arms TX200 and Pro-SPORT model air rifles
Newer Models with '3' safety slots cut on side of compression Tube.
For larger calibers, .20, .22, if output is over 12ft/lb., the open spring coil(s) can be modified (cut) to change output velocity. Approx. 1coil will be below 12ftlbs-16j. 

Contents:

PG4 ProGuide3 drop-in module
High Yield valve wire power spring
Triple guides
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.
1000 F.A.S.L. .029 = 29fps approx.
Joules= .7475=ft/lb.
Easy, do-it-yourself with virtually no-pre-load force on assembly. 

OPTIONAL:
NOTE for legal limit: Vortek’s ProSEAL25 piston seal is not required for air rifle to work with PG3 installed. However, it may perform higher velocities with more performance in noise damping.