My son just gave me a GI AR mag with magpul follower. He struck a deal with a guy for 6 ar mags and 7 berreta 92 mags for 25 bucks. Then went to the local gun shop and sold the berreta mags for what he paid for all the mags plus had them throw in the magpul followers. Then as a show of good will he GAVE the shop owner a pristine Colt ar mag, the only colt in the deal. So in essense he got 5 ar mags and magpul followers for free, plus the gratitude of the shop owner, who will continue to hook us up by giving great deals and giving us first dibs when the Ar parts finally come in.