Final step Mar 1, 2007 19:42:17 GMT 8 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Arclight on Mar 1, 2007 19:42:17 GMT 8 The final transition to a true DMR, I need to have a longer inner barrel installed on my M4.SO, I have the tight-b 509mm inner barrel, I just need someone to install it.........as cheap as possible.