Geissele Automatics Super Duty Mod1 Features The Geissele Automatics Super Duty Mod1 delivers exceptional performance as a duty-grade 5.56 NATO AR15 rifle designed for reliability and precision under demanding conditions. The cold hammer forged barrel paired with a mid-length gas system promotes consistent cycling and long service life while the pinned and welded HUXWRX QD 556 flash hider allows suppressor compatibility while maintaining a 16 legal barrel length. The Geissele SMR MK16 12.9 handguard with center tab rail provides a rigid mounting platform for optics and accessories. This rifle features a Geissele SSA-E X trigger with Lightning Bow that provides a crisp and consistent break for improved shot control. The B5 Enhanced SOPMOD stock paired with a 7075-T6 mil-spec buffer tube and QD endplate enhances stability and sling attachment capability. Additional performance upgrades include the Airborne charging handle for improved manipulation a Geissele A17 grip for enhanced ergonomics and the Super 42 braided buffer spring designed to improve reliability and recoil impulse. Geissele Automatics Super Duty Mod1 Specifications Manufacturer: Geissele Automatics Model: Super Duty Mod1 Type: AR Rifle Caliber: .223 Rem 5.56 NATO Action: Semi-automatic Barrel Length: 13.9 Pinned 16 Overall Barrel Type: Cold Hammer Forged Twist: 1:7 Gas System: Mid-Length Threaded Device: Pinned and Welded HUXWRX QD 556 Flash Hider Handguard: 12.9 SMR MK16 with Geissele Center Tab Rail Finish: Anodized Color: Desert Dirt Color Stock: B5 Enhanced SOPMOD Grip: Geissele A17 Buffer Tube: 7075-T6 Mil-Spec with QD Endplate Trigger: SSA-E X with Lightning Bow