What is the purpose of a free-float handguard or rail?: The purpose of the free-float handguard is to eliminate the possibility of external pressure on the handguard.What is a free-float handguard or rail?: A free-float handguard is designed to mount to the AR barrel nut or upper receiver in a manner that prevents it from directly contacting the barrel.Note: Go here DPMS Pattern 308 Handguards. The truth of the matter is Armalite has the widest selection. This page won’t be rich with results simply because there are few handguard options available for the Armalite AR-10. You see, the problem is a Google search for “AR-10 Handguard” or “AR-10 Rail” returns results for the more popular DPMS LR308 platform. Here I am fifteen years later attempting to help owners of authentic AR-10 rifles locate and select a handguard for their platform. I launched this in 2006 to differentiate the two competing platforms, Armalite AR-10 and DPMS LR308. AR-10 Handguards Armalite AR-10 Compatible Handguards

Armor lite ar 10 free float quad rail