TKO style 3-screw mod is a good modSeptember 21 2010 at 12:07 PM
|Mach-1 (Login Mach-1)|
Response to Agree with Robert
Not required but is so easy and does so much that it is worth the effort. Then the next thing is to get 2,000 pellets down the barrel as fast as you can to break it in. Then and only then would I do the other mods - you ay not need them.
Do check for breech seating. Many (mine included) do not seat well and it causes POI shift. Fixing this is also an easy fix.
Start with using rubber shoed bar clamps (two is best) to press the breech to the air tube. The snug up the breech screws and release the clamps. This is about the only way to compress the rubber port seal and eliminate the breech rocking. And this may not fix it either. You might need to modify the port or add some tape to the breech as a shim. I used the shim method to fix mine.
Would also free float the barrel by modifying the barrel band or just removing the barrel band completely.
Only do the easy fixes now. I'd not even bother with a power adjuster... until it starts shooting good. Then things like that might help squeeze the last bit out of it.