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Posted: 7/16/2003 2:46:04 PM EDT
Is it possible to use A1 pencil barrels with A2 upper receivers? I heard the sight post was different between A2 and A1 models, was wondering if they were still compatible.

Thanks,
E
Link Posted: 7/16/2003 2:55:52 PM EDT
Yes you can do this - go to Fulton-Armory.com and you can buy uppers set up this way (their Millenium uppers). The front sight post is different. The A1 is round and has 5 detents per rotation vs the 4 of the A2 post. The A1 is slightly more precises, the A2 provides a better sight picture.
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