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AR15.COM
10/31/2010 6:28:34 PM EDT
Guys, I have a LR-308 AP4 with the factory carbine length rail installed. I want a rifle length rail. I see two options:

1. Cut down the front sight post and install a JP rail.
2. Use a new gasblock and install the DPMS factory rifle length rail.

Do you guys have the tools to R&R the factory rail? It has a large diameter locking nut that will require some sort of spanner to work it without damage. These are the only two rails I am interested in. Which option would you recommend?
11/1/2010 4:20:50 PM EDT
[#1]
We are good either way. You will need to supply the HG you want, but i would definitely go with an FSB shave vs the new gas block.