Your USP might have a standard land and groove rifling barrel. I would keep it instead of upgrading to a polygonal bore......if you ever wear out the rifling on this one, then buy a new barrel which will have a longer lasting polygonal bore.Just picked up a USP in 9mm. First HK and looking forward to shooting it. I am not a newbie to handguns and probably have had every common make of them. Like the Var 1 setup on mine and hope thaat I can shoot it well.
My "new" USP has a KC date code, so 1992. Everything that I have read said that 1993 was when the USP was widely available. Are there many KC's out there? Also, I have read of some updates that HK made to the USP over the years. Are any of those necessary, meaning if I have a really early gun is there any reason I should send it to HK for an upgrade?
TGS, sure did a great write up here!! Only part i will add is Welcome to the Forum and the World of HK..Your USP might have a standard cut rifling barrel. I would keep it instead of upgrading to a polygonal bore......if you ever wear out the rifling on this one, then buy a new barrel which will have a longer lasting polygonal bore.
The only thing I would do is replace the firing pin with a newer one, which was developed a decade after yours was on the market. The earlier ones are prone to breakage through a lot of dry fire training. I'm not talking about finger blasting the USP for fun....I'm talking about dedicated dry fire sessions resulting in thousands/tens of thousands dry fires.
If you don't dry fire a lot, or don't shoot a lot, you're fine. Enjoy, that's certainly an early one.