Light weight build? the atacr is over a kilo so your setting the weight limit pretty high.
Id wait and see what Premier have comming out, if its not up to snuff then the new 52mm march. The 5-40 would be ok if they'v added the 1/4moa -.1mm clicks. The .05mill 1/8 version would be a pain in the butt.
otherwise buy now? I think Id take the Kahles.
Bookmarks