Geissele Automatics Super Duty AR-15 Barreled Upper Receiver 5.56 Carbine - Black - No Muzzle Device - 10.3" - 08-244B

Discover the pinnacle of AR-15 performance with the Geissele Automatics Super Duty AR-15 Barreled Upper Receiver 5.56 Carbine – Black – No Muzzle Device – 10.3″. Engineered for demanding professionals and enthusiasts, this barreled upper delivers unmatched reliability and precision in a compact package, ideal for close-quarters maneuvers or custom builds that prioritize durability and accuracy. Whether you’re outfitting a duty rifle or enhancing your personal defense setup, the Super Duty stands out with its cold hammer-forged barrel and robust construction, ensuring it performs under the harshest conditions without compromising on weight or balance.

Key Features

• Cold Hammer Forged Barrel: Precision-machined from CMV steel with a 10.3-inch length, 1:7 twist rate, and Manganese Phosphate finish for superior accuracy, heat resistance, and longevity—stabilizing heavier bullets for reliable terminal performance.
• Super Modular Rail System: 9.5-inch MK16 handguard crafted from 6061-T6 aluminum with Type III hard coat anodizing, offering ample space for accessories while providing exceptional corrosion resistance and a secure grip during extended use.
• Advanced Gas System: Carbine-length setup paired with Geissele’s bomb-proof Super Compact Gas Block, optimizing cycling for smoother operation and reduced recoil, so you stay on target even in rapid-fire scenarios.
• Mil-Spec Upper Receiver: Forged 7075-T6 aluminum with M4 feed ramps and Type III hard coat anodizing, ensuring seamless compatibility with standard AR-15 lowers and enhanced feeding reliability to minimize malfunctions.

These features aren’t just technical specs—they translate to real-world benefits like consistent shot placement, easier maintenance, and confidence in high-stakes situations. Say goodbye to finicky uppers that fail when you need them most; the Super Duty is built to endure abuse while maintaining sub-MOA potential with quality ammo.

Specifications

• Caliber: 5.56 NATO
• Barrel Length: 10.3 inches
• Barrel Profile: Medium (Government)
• Twist Rate: 1:7
• Gas System: Carbine
• Barrel Finish: Manganese Phosphate
• Handguard Length: 9.5 inches
• Weight: 54.08 oz (approximate assembled weight)
• Material: 7075-T6 aluminum receiver, CMV steel barrel
• Includes: Barreled upper receiver, handguard, gas block, and hardware—no BCG or charging handle

Why Choose the Geissele Super Duty Upper?

In a market flooded with generic AR-15 uppers, the Super Duty rises above with Geissele’s renowned engineering, drawing from military-grade standards to address common pain points like gas system failures or rail flex. This 10.3-inch carbine configuration excels in maneuverability without sacrificing velocity, making it perfect for suppressed setups or SBR builds. Customers rave about its flawless integration and out-of-the-box reliability, turning complex assemblies into straightforward upgrades. Invest in this black-anodized powerhouse for a rifle that evolves with your needs, backed by American craftsmanship since 2004.

Elevate your AR-15 build today with the Geissele Super Duty Barreled Upper—precision, power, and peace of mind in every shot. Order now and experience the difference that superior design makes on the range or in the field.