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Posted: 12/29/2005 7:45:00 PM EDT
I got a pair of Bushmaster M4 handguards for an assembled 16" upper I have and it seems as if the lip on the handguards are too thick. Am I aligning them wrong (just doing it as I did on a M16) or do they have to be shaved down?
Link Posted: 12/29/2005 8:25:48 PM EDT
I have not had this problem but I have seen where some just shave them down a bit.
Link Posted: 12/29/2005 9:05:03 PM EDT
Any technique on how? Or grab a razor blade and go to town?
Link Posted: 12/30/2005 3:57:40 AM EDT
[Last Edit: 12/30/2005 6:52:38 AM EDT by munyguru]
Link Posted: 12/30/2005 3:58:58 AM EDT
Rather than a razor, I'd try using sandpaper.z
Link Posted: 12/30/2005 4:28:28 AM EDT
also make sure that the channel in the rear of the handguards are seating over the barrel nut
Link Posted: 12/30/2005 4:33:19 AM EDT
I had the same issue in the past with an old rifle. After sanding they fit. If the delta ring spring is real loose, it might make it appear as if they don't fit properly also, as they riing can pivot around.

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