Bought a 30rnd mag new from Sportsman today: £50.
Best stick to Austrian surplus mags with that cost!
I had a look at the ACOG. More practical and mounts out the box.
They do mount a bit high on these unfortunately which put me off; I hate being stuck with a chin-weld on rifles. The SUSAT came in very cheap, and the optics are as good as anything more recent I have seen, despite being manufactured in the mid 80's.
It doesn't suffer much muzzle climb, but I would like to replace the thread protector since it works loose so easily. They take moderators quite well, but the extra cleaning would be a nuisance.