[QUOTE=WatchTheWorldBern;2230680]Steve-0, you're one of the people I had in mind with my question since my next BCG is probably going to be from Sionics. I've seen a few posts like Coal Dragger's about the potential dangers of harder steel impacting the barrel extension—is that one of the reasons you went with NP3 for your bolts? Curious about this from a technical standpoint.[/QUOTE
We chose NP3 mostly for the friction coefficient standpoint and the fact that it doesn't suffer from hydrogen embrittlement and trap carbon like NiB does. As far as hardness its very comparable to the standard C.158 and has held up well in our test guns and customers guns over the past few years. Weve yet to get a phone call or email about a bolt thats failed.
"your AR is shit, change my mind" - Will Larson
I make work horses, not show ponies.
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