Well I finally installed one of these in my SKS. The stock pin had a chip out of the end causing the gun to go click and not bang. I thought it was the ammo, until I picked up my SKS-D and found it to blast everything I ran through it. I never experienced slamfires as I disassemble and clean the bolts after every shoot with Czech corrosive, so not worried about it. Just something new to try. If it works out on my standard SKS, I might even install one in my D. 



