Heavier/new recoil spring?

[suhkoi]

Hello all,

I bought my mp1522 about a year ago or so and received my suppressor in october and have been shooting it like a bandit ever since.
now I am starting to notice more and more noise coming out of the ejection port and Im thinking my recoil spring is starting to go bad or something and wondered where I could pick up a replacement to keep the bolt shut better than now
Im on my phone, post pics when I can.

Thanks.

 

[w0ady]

call s&w for a new spring possibly. or could it be an extractor issue?

 

[Majorlk]

Hello all,

I bought my mp1522 about a year ago or so and received my suppressor in october and have been shooting it like a bandit ever since.
now I am starting to notice more and more noise coming out of the ejection port and Im thinking my recoil spring is starting to go bad or something and wondered where I could pick up a replacement to keep the bolt shut better than now
Im on my phone, post pics when I can.

Thanks.

Unless you have 20-30 thousand rounds through it, I doubt there is anything wrong with the spring. More likely the suppressor is filthy and needs cleaning, forcing a higher back pressure against the bolt face, letting more gas escape there instead of going down the barrel.