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AR15.COM
AR Sponsor
4/21/2009 3:42:03 PM EDT
I just bought a Vltor CASV EL for my POF 415. I need help making it fit my rifle. There is a part (right next to where the plastic handguards mount on the rifle) that is wider than the rail system. Do I have to replace that piece? If you don't know what I am talking about it is a cyilndrical looking thing with a bunch of holes in it. The piston goes in it and into the upper receiver. If you guys could help me out, I would be eternally grateful.
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