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cofi
06-20-2011, 16:35
Looking for a picture of a carbine length Vltor Vis 7" upper with a 14.5" barrel and the stock triangle front site(sorry i dont know the proper term for it)

building my upper now friend says to go with the longer vis 2 9" upper and BUIS


i like the look of the triangle front site i just dont know if the carbine upper is going to leave too much barrel hanging out

TIA

leatherneck448
06-20-2011, 21:12
the seven inch rail was meant for carbine gas systems, so the FSB will fit fine. Just make sure you get a barrel with holes for the two FSB pins, or get them drilled out later by a gunsmith.

If you do go with a standard FSB, and want the 9" rail, you'll need to switch to a barrel ported for a midlength gas system(9"), instead of a carbine length(7").

If it were me I'd choose the middy barrel w/a BUIS, and a 12 inch RIS, but thats just personal preference. It opens up a lot of doors on down the road, and saves you a bit of cash if you dont want to permanently co-witness an optic.

BUT....... its your gun, so do what you think looks best to you. Thats what building a gun is about. If you have any more Q's then just ask.

hope this helps,
Kenny

Byte Stryke
06-20-2011, 22:04
I have seen what I THINK he is talking about...
a carbine running a low mount gas block, a rifle length handguard and a fixed front site(Front site is pinned but barrel not drilled for gas)

Dissipator

http://i1092.photobucket.com/albums/i410/Guy_Bennett/AR-15/800px-Dissipator_Barrel.jpg