|
To this day, I still run stock TM pistons/head in most of my aeg's. They are still fairly resistant to wear, and if the teeth on the piston wear down after a season of playing, it's like $8 to replace instead of the ransom that guarder or systema will demand from you.
My M4 is running a prom 110 and a stock tm piston assembly, no problems at all - but it's shimmed to a T and i don't have any resistance problems.
One thing I have seen in some mechboxes from a variety of manufacturers is that sometimes you will see small voids or bumps in the surface of the mechbox where the piston slides back and forth. Despite the fact that they are usually small (less than .5mm), they can cause resistance issues or compound an already existing problem.
With my previously mentioned M4 (ICS), I went thru three pistons in three games (stock ICS, Guarder and Systema area 1000), before I finally completely degreased my upper mechbox and noticed the voids/bumps. Starting with a 600 grit sandpaper and working my way down to 2000 grit, the insides of my mechbox are now mirror smooth where the piston slides, and lo and behold, no more problems with pistons breaking.
So it's a long shot, as it's not particularly common, but try wiping the lube off your mechbox and checking for voids/bumps.
|