Use a Brigand Arms MLok backing plate for mounting accessories or BA Pic rail with backing plate. Made to fit the open weave pattern. Will mount anywhere on the handguard.
The 7" and 9" handguards are 3.6 ounces, the 12" handguard is 4.6 ounces, and the 15" handguard is 5 ounces.
The inner diameter is 1.75 in., It can be used with compensators and suppressors depending on the length of the handguard being used versus the length of the barrel, and also the outer diameter of the suppressor or compensator that is being used.