So i have purchased two of these and tested so far in; a norinco ar, ar 180-b and rra lar-15. One mag {pics to follow} the one with black front,is a pos, ftl's ,bolt on the 180-b wont even try to cach a round. The second with clear front seams to work well (only tried with snap caps so far). I compared the first one to some lar mags that worked and noticed the back was obviously diferent. Also the first mag was hard to seat often requiring me to hold the bolt open to get it to latch. When the second mag arrived i mesured the opening with vernire clipers and they were the same
the only diferances i can find are the first mag is tight to load (maybe pined wrong) and if you look at the pics the first round would feed from the oposit side of the mag.So any suggestions before I start hacking and filing?























































