This is not a knock on the ks-47, but more for everyone’s knowledge. The reason I say that is I swapped the stock ks-47 lower trigger for a geissele g2s. About 1/6 of vympel rounds were light primer strikes. About 1/20 of tula rounds were light primer strikes. If I had left in the stock trigger, perhaps this wouldn’t be an issue. But I’m determined to make the G2s work. So I’ve installed a black rifle arms enhanced firing pin, and will take it to the range today to see if that remedies the light strikes. If not, my next step will be swapping the hammer spring foe the black rifle arms enhanced power hammer spring. Hopefully won’t have to do this, as I’d like to stick with all the geissele g2s trigger components but we’ll see how it goes today!
Update:
Fired 120 rounds vympel, 5 rounds tula (mainly to ensure no pierced primers on tula). Zero light primer strikes on tula, 4 total light primer strikes on vympel. A marked improvement, though still not perfect. So one per mag essentially. Next decision to make is whether to live with it or swap the hammer spring out for the enhanced power spring I have on hand to see if that brings the light strikes down to zero.
For anyone that swaps out their fire control group I would recommend this enhanced firing pin based on this improvement today. No punctured primers, improved firing consistency.
good info. I’ve been wanting to take some time and tune my KS-47 in and make it a little more robust.
I’ve read that a lot of the Russian stuff has hard primers.
I don’t know if PSA uses an increased power hammer spring on the stock KS47 but the first thing I did was install my own high power hammer spring just for peace of mind. I would personally stick to Mil spec triggers on this system for that reason alone.