OK, I was reading that the USP uses a non-standard, proprietary rail. Do you USP owners have a fix for mounting your picatinny accessories - or do you have to buy dedicated HK stuff? Is the rail wider or narrower than a pic rail?
Not really one or the other the usp rail is straight and does not have the horizontal cuts of pic so it doesn't fit anything except proprietary gear.Is the HK rail larger than pic - or the other way around?
No the usp does not. It has a proprietary rail.Does it not have the built in pic rail under the muzzle already?....