The Approach is what I have and it does come with a detachable mag. Also, last I checked, the Premier guys will rebarrel your rifle for $500.
If weight is a driving factor, Christensen has to be on your list. I have two christensen's and they both are crazy good shooters. This is my newest one - its their MPP in 308. It has a 12.5" barrel and I am getting 2400 fps out if it. Arm guard/stock folds up and I can fit it inside my pack. Its shooting 1/2-3/4 moa out to 500 yards with 155 TMKs. Something to consider
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