Great finish, but not quite "enhanced"
Love the melonite finish, makes it harder and easier to clean. BUT - this is not a good "enhanced" firing pin, by that I mean that it does not penetrate more (as expected) into the primer to reliably ignite 5.45x30 or 7.62x30 primers in those types of AR-15's. My 7.62x39 AR and my 5.45x39 AR had several failures to fire in every 20 round box I put through them until I got an actual "enhanced" firing pin from another retailer. I like the melonite finish, perhaps that's what they meant by their version of "enhanced". The Q&A section answer from Brownells led me to believe they'd work for 5.45x39 and 7.62x39, but unfortunately, that is not the case. The other enhanced firing pin I got protruded an extra few thousandths of an inch more which did the trick.
