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Christmas in September!


Bear

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The gas block (front sight base) determines the location of the gas tube.  The gas tube determines the location of the handguard endcap, because it passes through it, in an exact spot on the handguard endcap.  In turn, that handguard endcap determines where the handguard locks in. 

The front sight base on this barrel, centered over the gas port in the barrel, is the heart of this whole maneuver, and dictates where everything else goes.   :thumbup:

Where you position that front sight base, and taper-ream that barrel for it - that's what's driving the rest of that train, man.  Not the other way around.

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Well, shooterrex's FSB looks identical to the one on Brownells site. Assuming that they just changed the FSB without changing the gas port location in the barrel means it should work. They probably deleted the bayo lug for Commiefornia. I could live with no bayo, but I do wish they hadn't removed the adjustable sight.

Here's a pic of the box from 80percent arms I got today!

16001417234448544516134098966583.thumb.jpg.ca74e41087d0642f9bfea296d45f5e81.jpg

 

Edited by Bear
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