i have a saiga 7.62x39 and i shoot bout 700 rnds per month.. the gun is overgassed so the carrier hits the trunnion everytime..i change the recoil spring to a wolff exra power spring and i still hits just not as bad..i have a black jack buffer and that helps a lot with the metal to metal contact.. what i wanna know is can the buffer cause more damage to the gun..like bend the rivits or something..? wut should i do? if i was rich i would just buy a bunch of 7.62x39's and change out parts whenever one breaks..but i am not..any opinions are welcome thankyou.