If the non- AccuStock model saves significant $$, I would go with an aftermarket stock..
Choice depends on the depth of your wallet, and the durability and accuracy you're seeking.
You seem to think that most of these are "tactical", but they are not.
HS Precision, McMillan, Manners, Bell & Carlson and others offer quality stocks for every application.
Start here:
http://www.stockysstocks.com/servlet/StoreFront