hey guys, just wondering who has had luck with the Maple Ridge handguards. MRA X2 M-Lok DPMS LR308/AR10 Handguard. I have a BSF AR10 20.00" .308 Flutted Carbon Fiber Barrel. With a gas block diameter. 875". What are you using for gas blocks that will fit inside. The handguard has an internal measurement of 1.5". I would prefer to run an adjustable gas block?