Best I can remember, these mags had a problem of the follower being a little short on the back end and not tripping the bolt catch when the last round was fired. The price on these dropped awhile back and caught my interest so I did a search on the "other" site and found this to be the issue so I then knew why the price had dropped on them - the venders were trying to move them out. I have no idea if this problem with the mags has been corrected. As far as my own experience, I have none with these mags. I decided not to buy any after I researched them.
ARKAR




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