Geissele Super Duty MOD1 | 5.56×45 | 11.5in Upper

The Geissele Super Duty MOD1 is a complete AR-15 upper assembled to provide a compact, modern carbine configuration. It pairs an 11.5-inch barrel and a 1:7 twist with a flat-top receiver and an anodized Desert Dirt finish for a durable appearance. This complete upper is suited for short-barrel carbine applications such as tactical training and competition stages that favor a compact, quick-handling platform.

Product Specifications

• The model is SUPER DUTY MOD1.
• The manufacturer is Geissele Automatics.
• The caliber/cartridge is .223 REM/5.56 NATO.
• The barrel length is 11.5 inches.
• The barrel twist rate is 1:7.
• The finish is Anodized.
• The color is Desert Dirt Color.
• The fit is specified for AR-15 platforms.
• The receiver configuration offers a Flat Top for optics mounting.
• The product type is listed as a Upper assembly.
• The style is a Complete upper receiver assembly.
• The contour is specified as Geissele.
• The subcategory is Complete Upper Receivers.
• The make/model is listed as AR-15.
• The UPC is 810081133739.

Engineered for shooters who prioritize a compact, purpose-built upper, the Super Duty MOD1 delivers a complete, ready-to-install option for modern carbine builds. Its combination of a short, 11.5-inch barrel, 1:7 twist rate, and durable anodized finish makes it a practical choice for range work and competitive stages where handling and consistency matter.