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Posted: 1/29/2007 7:09:39 PM EDT
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I am in the process of my first build... It started out a a standard car-15. I decided I liked the look of the full length free float tube with the 16" barrel, so I cut off the front sight to make a low profile gas block and installed a DPMS two piece tube.. I also ordered a replacement front sight assy. My original plans were to drill and tap the sight to mount it on to the barrel.. My problem is.. the place on the barrel where I now have to mount the sight is about .015" smaller than the sight opening. My question is do the majority of you think I can get away with drilling and tapping the sight and locktitening setscrews in place? Or does anyone have another way to mount it? Any help out there.... |
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Sounds like you are trying to make what's typically known as a Dissipator setup. Carbine gas system, rifle length handguards and front sight base. It's normal for the barrel to be 0.015" undersized forward of the normal FSB location. I suggest you get some 0.007" shim stock and make two little shims to take up all the extra space. Then install a setscrew from the bottom to hold it in place while you drill both the barrel and front sight base for pins. |
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