I have been having a few issues with 2 of my AR builds not firing every round. One is a 9mm pistol build from the ground up & the other a new 7.62x39 complete upper. Both seemed to have light primer strikes on good and cheap ammo with stock firing pins. So I ordered up new ones & took them for a spin today. The 9mm ran 100 rounds of 2 types of ammo & even rounds that had previous light primer strikes with no issues. The 7.62x39 ran the rounds from previous trip that had light primer strikes so all is now good.
The 9mm has the Palmetto State enhanced firing pin & the 7.62x39 has a Red X.
If you have any issues with light primer strikes try an enhanced firing pin versus heavy hammer springs. Hammer springs will effect your trigger pull & still might not fix light primer stikes... my .02
The 9mm has the Palmetto State enhanced firing pin & the 7.62x39 has a Red X.
If you have any issues with light primer strikes try an enhanced firing pin versus heavy hammer springs. Hammer springs will effect your trigger pull & still might not fix light primer stikes... my .02
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