Coyote FUSE Slide Equipped with ROMEO-X SIG-LOCTM – Fully Enclosed Sealed and Gas-Purged Optic System and Assembled in the USA – Mounts from Underneath the Pistol Slide Utilizing the SIG-LOCTM Mounting System for the Strongest Lockup in the Industry – Side Battery Allows a Low Deck Height and a Standard-Height Iron Sight Co-Witness – 5.1 Threaded Barrel – Detachable Magwell & Extended Slide Catch Lever – (4) 21rd Steel Magazines with High Visibility Followers – XRAY3 Day/Night Sights – CALIBER 9MM – FCU MATERIAL STAINLESS STEEL – GRIP MODULE COYOTE XMACRO POLYMER – SLIDE MATERIAL STAINLESS STEEL – SLIDE FINISH COYOTE CERAKOTE – MAGAZINE CAPACITY 21 ROUNDS – SIGHTS XRAY3 DAY/NIGHT SIGHTS / ROMEO-X SIG-LOC (CIRCLE DOT) – TRIGGER FLAT STRIKER FIRED – OVERALL LENGTH 8 in – OVERALL HEIGHT 8 in – OVERALL WIDTH 1.4 in – BARREL LENGTH 5.1 in – SIGHT RADIUS 6 in – WEIGHT W/MAGAZINE 24.8 oz