The UDP-9 Pistol with SB Tactical SBA3 stabilizing brace finished in Tactical Grey Cerakote! - Tactical Grey Cerakote H-227Q finish on lower receiver upper receiver and handguard - Last round bolt hold open on an empty magazine - Flared magwell for faster reloads - Integrated oversized trigger guard - 7075-T6 billet aluminum lower receiver - 7075-T6 billet aluminum slick side upper receiver with appropriately sized ejection port and no forward assist or dust cover - Threaded bolt catch screw - 9mm bolt assembly for use with a standard AR-15 hammer - 6