Home Full Tune 9oz. Conversion HPA Conversion Kits & Accessories Contact & Orders

All Conversions include the Full Tune for the 850.

The 850 shown here with optional scope and no Shroud.

This is the Bulk fill option (9oz Paintball tank)

Average .177 Muzzle Velocity at 85F on CO2:
(.22 is approximately 100fps slower using 14.3gr CP)

Before: 750fps (7.9gr CPL)
After:   800fps
Increased Shot count, close to 500shots per fill (at full power)

NOTE: You will need an CO2 Fill Adapter to refill the Paintball tank.
look at my Fill Adapter section under "Kits and Accessories"

Description Price Options Notes

850 to PB Adapter

30.00     This adapter is the best around, I will "flow mod" it for you. 

9oz PB tank

20.00    I get these from Walmart, price may vary.

Take down / rebuild

100.00    Take down of the action and check and correct any of 
  the "common" issues that might be found.
  This will include:
  1. Shim for the barrel if  "sloppy".
  2. Full breech and port mod.
  3. Re crown Barrel to improve accuracy
  4. Check and replace o-rings (usually not needed on a new gun)
  5. Adjust / center probe on Breech
  6. de-burr and lube the action and hammer ways.
  7. Replace Hammer spring with Upgrade spring and new guide.
  8. Fit any other parts included in the tune. (discuss with me first)
  9. Put grub screws into empty sight screw holes if sights were
       removed. (on request only).
 10. Flow Mod Valve and adapter. 
 11. Trigger mod. Adjustable, 2 stage, light and crisp.

Note: Any parts removed from your gun to facilitate the tune
         or Conversion will be shipped to you with the rifle.

Half Shroud by TKO with
Tune or Conversion.

  115.00   $130.00 if bought separately.


35.00**    For USA (lower 48) Via UPS only.



                               ** Shipping costs are estimated, this is an average price and will vary depending on what you packed it in
                                    when you sent it to me. (Heavier boxes like rifle cases will cost more to ship)