Geissele Super Duty MOD1 Pistol .300 BLK 8″ Threaded FDE

About this product

The Geissele Automatics Super Duty MOD1 (model 08-518S) is a compact AR-style pistol built around an 8-inch threaded barrel and modular Geissele components. Chambered in .300 AAC Blackout, it pairs a short, chrome-lined cold hammer-forged barrel with the Geissele SMR MK16 rail and a Flat Dark Earth receiver for a compact, service-oriented package. The pistol features Geissele ergonomics including an A17 grip, SSA-E X two-stage trigger with Lightning Bow, and a configurable safety selector for familiar operation.

Key Specifications

• Manufacturer and model: Geissele Automatics 08-518S (Super Duty MOD1).
• Chambering: .300 AAC Blackout.
• Barrel length: 8 inches with a threaded barrel configuration as specified.
• Barrel construction: cold hammer-forged, chrome-lined barrel.
• Handguard: Geissele SMR MK16 with center tab for accessory mounting.
• Trigger: SSA-E X two-stage trigger with Lightning Bow.
• Brace: SB Tactical SBA3 synthetic brace (magazine not included).
• Grip: FDE A17 grip for consistent hand positioning.
• Overall length: 26.75 inches.
• Weight: 5.40 lbs.

This Super Duty MOD1 pistol brings Geissele engineering and practical AR ergonomics into a compact format that suits close-quarters and utility-focused use. Its combination of a robust barrel, modular rail system, two-stage trigger, and the SBA3 brace creates a capable platform for shooters who prioritize reliability, build quality, and straight‑forward functionality.

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