Re: Will a Larue 308 handguard fit a DPMS style upper?
Even if you find one of the Larue DPMS LR-308 rails floating around...it won't work well with the new, higher LR-308 receiver rail.
Daniel Defense is the way to go for a railed handguard of similar "type" to the Larue unit. DD has 7", 9" and 12" railed handguards that are made for the DPMS platform.