I've had a couple sets of the military contract extended grips. The only insight I have about that is, personally can't stand them. Don't like having to reach between them to change mags, and the pistol don't fit as nice in yer back Wrangler pocket. If I want a longer grip, I might as well get a few more features with it, and get a second or third series pistol and have the mag catch easy to get to.