Current cost is $251.31 from the UK. Shipping ran me $44. and I got it in 7 days. I know of no US suppliers that carry this scope. It is the cheapest MIL/MIL I could find. On a rimfire it can focus down to 10 yds. And a fixed 7.5 power is not bad for a 22lr.
It also has a standard MILDot reticle, and you must order the Metric adjustments, which are listed as 1 cm @ 100M. Which oddly enough, is the same as 0.1 MILS @ 100 yds. Hense MIL/MIL.
There are no others I'm aware of under $300. I'm using mine currently as a back-up scope for both my centerfire and rimfires. I did have it on my 22lr trainer for a while and it worked and adjusted fine.