Free float handguard for 308 rifle, with 1 7/16" with 16 TPI thread, fit DPMS/SR-25 uppers. The distance from center of barrel nut to the top of handguard receiver rail is 1.325". If this distance is the same as the rifle receiver, the handguard rail will be flush with rifle receiver top rail, regardless your rifle is called high profile or low profile.
