This is a company that now includes (randomly, apparently) garbage Checkmate magazines with some of its new guns to save a couple of bucks.
Really? Garbage? Hardly. . . I have used Checkmate magazines as well as MecGar and others. Never had a problem with any of them. Matter of fact, you can buy Checkmate magazines for the M1A directly from Checkmate and get them a whole lot cheaper than Springfield. Checkmate provides OEM magazines for that rifle.
They are NOT junk.