The Ca-15 is in .223.
The Ar is very lightweight, slim hand guard and the balance is very good.
I'm looking for a scope with excellent glass and the more compact is better.
I have owned couples NF and like them a lot but none of them was compact. The 10x is compact but i want more mag than this to take advantage of the match barrel.
I don't see a NXS sit on this AR.
The March is lighter than the S&B but i never handle one. I tried to order one from spartan optics but he never responded to my phone calls after he send me the price list ...