Wolverine MK-20 300BLK Pistol Black Multi-Cam Upper/lower full billet construction Finish: Hardcoat type III anodizing (Multi-Cam Black Cerakote) Trigger: Hyperfire 3.5lb tactical trigger Extended takedown pins Fully Ambidextrous (mag release, bolt release, selector, charging handle) CNC machined from 7075-T6 billet aluminum Oversized trigger guard Screw-in bolt catch pin Trigger reset set screw Threaded takedown spring hole Bullet selector markings