here's the thing OP. if you buy a gun like the RH10 from an importer, it's ALREADY 922r compliant. what the deal is, is that an imported gun can have no more than 10 foreign parts (from a list of parts, of which an AK has 16 on a stamped with a threaded barrel, and 15 for a milled or one without a threaded barrel). So what you need is 6 (or 5 for the milled variant or one without a threaded barrel, like a SAR-1 or a Mak90) U.S. parts. there's a whole list, but the furniture, the trigger assembly (counts as 3 parts, and 99.999% of imported guns use that as an easy way out) and an american mag counts as 3 parts (follower, floorplate and body). IFFFFFFFFFFF your gun only had a few parts on it that were domestic, then you'd need to use mags to make it 922r compliant (if you're worried about it) but guns from the factory already have the parts in the GUN changed out to where it's already compliant no matter the mag you put in. The HR10 has the trigger assemly (3 parts), the stock, the pistol grip, AND the foregrip are domestic, giving you the six parts you need (it might have 7 if they use a tapco slant brake like the wasr)....
but the thing is. 922r really only applies to importers, not owners so put it out of your head and just shoot your gun