The mag blocks really aren't an issue any more... there are several blocks that drop in from the top of the mag well, and are trapped under the upper... they can't fall out, even with the mag catch depressed. No need for cam action mag blocks.
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The mag blocks really aren't an issue any more... there are several blocks that drop in from the top of the mag well, and are trapped under the upper... they can't fall out, even with the mag catch depressed. No need for cam action mag blocks.
Your advice is better than mine. I see Brownells has drop in mag block 9mm conversions online for $200.
That work with both Colt and Uzi mags.
http://www.brownells.com/rifle-parts...-prod1548.aspx