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Posted: 7/31/2003 6:08:12 PM EDT
What are the differences? Are all standard A-2 front gas blocks designed for the same diameter barrel?
What diameter barrel does an A-1 gas block fit?
Is the distance from the center of the barrel to the top of the sight the same for each?
Is the A-1 post different from an A-2?

Also, would an A-1 barrel be as accurate as an A-2 if both were free floating?
Link Posted: 8/2/2003 2:36:17 PM EDT
Originally Posted By jonathan1994: What are the differences? Is the distance from the center of the barrel to the top of the sight the same for each? Is the A-1 post different from an A-2?
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I can answer these two. Yes, they are. Yes, the A1 post is round with 5 adjustment notches, and the A2 is square with 4 adjustment notces.
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