SR-25 Piston Issue

Hey guys,

I have an A&K SR25 with various upgrades for quick trigger response. However, a lil while ago, the back end of the piston stripped off and no longer engages with the sector gear. I bought a G&P SR25 piston to replace it with, but the track guides on the side fit too tightly and it binds on the sides of the gearbox. I'm thinking of filing out the tracks but I'm lazy haha. Anybody either know of a good way to accomplish this, or know where I can find a good poly or aluminum piston for my SR25? Every place I've looked at has them out of stock, or they sell crappy ones. Thanks!

I bought a couple of these.

A&K Piston

Been running this in my SR at ~530 FPS with .2's. Maybe 5K rounds down the barrel. No issues yet with it.

You can also just sand/dremel the corresponding rubbing parts, I have done it multiple times. Just take your time and do it carefully.

PhoenixFlyer wrote:I bought a couple of these.

A&K Piston

Been running this in my SR at ~530 FPS with .2's. Maybe 5K rounds down the barrel. No issues yet with it.

We at airdog have that piston instock