Quoted:
They work good, had to file the mag slot some.
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Roger on that. Also, if you want them to hold 30 rounds, you either have to replace the followers w/the US greenies, or cut about a third of an inch off the center rib of the original. The original followers, which look black but are actually a very dark blue, are the same stryle as the greenies, but are softer and more bendable in construction. Whether this will have any effect on longevity, I don't know.
Also, every once in a while there seems to be one that just won't work right; so if you buy 10, nine will be just fine and one won't cut it; or maybe all ten will be just fine, or maybe 5 will work and five won't-----you get the idea[:D]
Still, for the price, they're hard to beat. Bought 4 for $15 apiece at a recent show, and will probably get a couple more.