My PH in Namibia, contacted a gunshop/gunsmith in Windhoek Namibia a couple of weeks before I arrived. Gave him the thread diameter, pitch and count. He cut the threads to specs. When we were collected up at the airport, we just stopped at the shop and he fitted them and used an aluminum rod down thru to make sure they cleared property.
Two .30 cal Sonic 45 cans out the door for $380 US total. No permits required - just straight over the counter purchase. t just leave them there with Jan and use them when we go there.
The Sonics have SS cores, fully disassemble for cleaning and the actually mount partially back over the end of the barrel so they don't protrude as far beyond the end of the muzzle. Therefore, the rifle can't have a front iron sight.
If you don't want to try and bring your own, you could just pre-order and buy one there and just leave it with your PH as part of the "tip". If he doesn't use it/need it, he can always sell it or trade to someone for something else. It won't just be tossed in the trash.
