The Geissele Automatics Geissele Sd Mod1-A 13.9p&w 5.56 Ddc is a premium modern sporting rifle built around the proven Super Duty Mod1 platform with fully ambidextrous controls. It features the Super Duty ambidextrous receiver set, a cold hammer forged chrome-lined barrel with a 1:7 twist, and a Huxwrx QD 556 flash hider pinned and welded to the 13.9 inch barrel for a durable, suppressor-ready muzzle interface. A Super 42 buffer spring with H2 buffer and the reliability enhanced bolt carrier group work together to deliver smooth, dependable cycling.

This configuration is well suited for demanding range use, training, and general-purpose rifle roles where reliability and control matter. The SSA-E X trigger with Lightning Bow and the Geissele Ultra Duty lower parts kit provide a refined, consistent trigger press and solid controls, while the extended handguard and adjustable stock support comfortable shooting from a variety of positions. Backed by Geissele’s reputation for meticulous machining and innovation, this rifle is designed for shooters who want a refined, duty-grade AR-15 pattern platform.

Key Features:

• Manufacturer: Geissele Automatics
• Model: Super Duty Mod1-A 13.9 P&W 5.56 DDC
• Caliber: 5.56
• Barrel Length: 13.9 inch, pinned and welded with Huxwrx QD 556 flash hider
• Action: Semi-automatic
• Trigger: SSA-E X with Lightning Bow
• Bolt Carrier Group: Reliability enhanced
• Buffer System: Super 42 buffer spring with H2 buffer
• Receiver Set: Super Duty ambidextrous
• Lower Parts: Geissele Ultra Duty lower parts kit