I think the HK height mount would be the right choice for an AUGa3. When I had an AUGa3 to write an article on, I found that the Larue HK416 T-1 mount was the right height for the AImpoint T-1. This was different than my original AUGa2 which had a rail that could go in the place of the optic which took the lowest Larue mount to work with the Aimpoint T-1. When first got the T&E AUGa3 I tired the Larue low mount for the Aimpoint T-1 and found it was too low.
Has anyone compared the triggers on the AUG Nato stock and the standard AUG stock? I've read that to accommodate the magazine release on the AR-pattern magazine, the NATO AUG only uses one trigger bar as opposed to two trigger bars on the original design; some reviewers have reported a heavier trigger pull on the NATO versions because of this, but others don't mention it at all.
I heard all sorts of horror stories about how the AUG is over gassed when suppressed even with the suppressor gas plug, but I don’t find that to be the case. Sounds good, works good, gun shoot, gun good.
#RESIST
I owned the A3 Nato mags version until this Spring. I never measured it against the traditional mag versions, however the things you can buy to improve the trigger would not work in mine. I could not install the "trigger tamer" kit and get it working, and I tried one of the Rattworks metal sears intended for the A3 trigger groups in my A3 Nato mags trigger group and it only made the trigger much worse and often failed to reset, gave it to a friend who has the Steyr mags A3 version and it did drop in and improve his A3 trigger.
My aimpoint was in an GG&G high mount and that worked very well in terms of the correct height for me.
I quite like the Ratworx sear in my AUG A3 M1. Then again, I don’t get wound up about triggers and would never ever spend Geissele money for a Geissele trigger in an assault rifle.
#RESIST
Magpul MS3 converted to single point after I decided the same on the factory front sling point.
#RESIST
For slings, I like having a sling point at the rear of the top rail and at the buttstock. The provides more stability vs single point when slung.