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Page Armory » M-16
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Posted: 4/18/2017 1:50:57 PM EST
I broke down and bought a 10 inch 9mm upper and still need the block, spring and buffer. I like the idea of the haun block but do I need a $200 block or does the promag one work find with Colt mags?

The lower is a frankford arsenal w/ LMT sopmod and colt trigger group. The upper came from armsunlimited and it looks like the bolt is ramped from thr factory, I do use KNS pins so that is already taken care of.
Link Posted: 4/19/2017 7:36:19 AM EST
I would look for a hahn, RRA, Spikes, or check with Rudy, I think he was having a block made as well
Link Posted: 4/21/2017 11:22:26 AM EST
KAK industries makes a nice block that drops in from the bottom and allows for last round bolt hold open. Only $100.
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