The first thing I noticed when I picked it up was that the grip angle was designed for shooting off-hand and would not lend itself well to prone shooting. I asked the Magpul representative if they planned on releasing a precision version with a different grip angle and he confirmed that it was in the works, but didn't have a timeline for delivery.
I then inquired if they planned on releasing a .223 version of the magazine. Unfortunately, he said they had no plans to do so in the near future. Their 308 AICS-compatible magazine has a neat feature; it comes as a 5 round magazine. However, the follower is notched and the tip can be broken off to allow a 6th round to be loaded. In many state, there is a 5 round limit for hunting.