I've got my Kuna with the Haga Defense Extended Handguard. Going to pick up a Rugged Obsidian 9 to run it quiet. Are the 2 products shown what I need to run a 3 lug mount? I've read pistons that are needed to run it on a handgun aren't needed for use on a fixed barrel gun. Just want to make sure I'm not buying unnecessary or incompatible parts.
u/ColdGrounds — 19 days ago