The Nightstalker SF is a full-size 1911 pistol with an integrated picatinny rail that comes from the factory with a long list of features that include a skeletonized hammer SF trigger and ambidextrous safety extended beavertail grip safety aluminum grips and rear slide cocking serrations. Built on our forged frame and slide for durability with our cold hammer forged barrels for accuracy the Nightstalker 1911 is ready for whatever comes at you. – Tisas Forged Foundation Construction Forged Frame & Slide** – Tisas Hammer Forged Barrel Threaded 5/8×24 TPI – Colt® Series 70 Based Internals – Lowered & Flared Ejection Port – Platinum Grey Cerakote Finish – Contoured Trigger Guard Under Cut – Rear Slide Cocking Serrations – SF Machined Mainspring Housing – Machined Aluminum Grips – Optic Ready 507K/RMSc Footprint – Suppressor Height Glock Cut U-Notch Rear w/ Dovetail Tritium Front – Skeletonized Hammer – SF Trigger – SF Style Ambidextrous Safety – Extended Beavertail Grip Safety – Available in .45ACP – Tisas Premium Owners Kit (2 Magazines Cleaning Kit Lockable Rugged Case) – Covered by 1-Year Warranty and the Tisas Lifetime Service Plan – Frame: Carbon Full-Size w/ Picatinny Rail – Slide: Carbon Steel Government Length – Caliber: .45ACP – Barrel: 5 Cold Hammer Forged Ramped Threaded 5/8×24 TPI – Internals: Colt® 70 Series – Sights: Suppressor Height Glock Cut U-Night Rear -Dovetail Tritium/Orange Front – Grips: Machined Aluminum – Finish: Platinum Grey Cerakote – Weight: 2lb 6oz