The MK18 Federal Mod Upper Receiver Group is high-performance upper assembly engineered for special weapons and clone rifle enthusiasts. Born from a custom Gordy concept and refined with Potomac Armory’s expertise, this upper group integrates military-grade components to deliver exceptional durability, perfect accessory alignment, and seamless suppressor compatibility.
• DD 12.5" CHF Chrome-Lined Barrel – Consistent ballistics and extended durability
• Custom Allen Collar – Ensures precise, near-factory fit for suppressor attachment
• Flat Top Mil-Spec Receiver – Maximizes accessory mounting and rugged reliability
• Modified Mk12 Slim-Line Gas Block – Optimizes cyclic performance with reduced weight
• DD Black RIS-II Rail – Provides a secure, tactical platform for optics and add-ons
• AEM5 Suppressor Interface – Minimizes muzzle flash while enhancing stealth
• Optional ACOG Compatibility – Facilitates rapid target acquisition
• BUIS Retrofit Ready – Easily integrates backup iron sights when needed
Imagine an upper receiver group that redefines tactical precision by marrying the legacy of the Gordon Carbine with modern military engineering. This complete upper assembly was designed to eliminate the limitations of traditional designs by replacing the A-frame FSB with a flat top configuration. Every element—from the mil-spec 7075 T6 forged receiver with black type 3 anodizing to the custom Allen Engineering collar—has been meticulously crafted to ensure that all components work in unison. The result is a system that not only meets but exceeds the rigorous standards expected in high-pressure, CQBR environments.
Every detail of the MK18 Federal Mod Upper Receiver Group is engineered for optimal performance. The robust receiver, forged from 7075 T6 aluminum and finished with durable black type 3 anodizing, provides the essential backbone for a tactical platform. Integrated with a low-profile, modified Mk12 gas block and paired with the precision-aligned DD black RIS-II rail, this upper group is designed to flawlessly accommodate accessories—from high-performance optics like the optional ACOG to retrofit backup iron sights from trusted brands such as Magpul, Knights Armament, or Griffin Armament. The custom Allen Engineering collar ensures that the AEM5 suppressor attaches with near-perfect alignment, thereby reducing muzzle flash and sound signature.
This upper receiver group is not just a collection of parts; it is a complete tactical solution. The synergy between the barrel, gas block, receiver, and rail system delivers superior cyclic performance and reliability, ensuring that every shot counts. The design emphasizes both legacy and modern innovation, providing the operator with a platform that is as adaptable as it is precise. Whether you're engaging in close-quarter battles or extended range engagements, the MK18 Federal Mod Upper Receiver Group offers the performance and versatility that the modern battlefield demands.
Equip yourself with an upper receiver group that embodies decades of military innovation and modern engineering excellence. The MK18 Federal Mod Upper Receiver Group is the definitive choice for operators who demand precision, durability, and seamless integration of tactical accessories. Step up your game with a complete upper assembly that sets a new standard for special weapons platforms.
• Barrel: 12.5" Daniel Defense CHF chrome-lined Government profile, optimized for CQBR
• Gas Block: Modified Mk12 modern slim-line design, low-profile
• Receiver: Potomac Armory CAGE Code mil-spec flat top forged from 7075 T6 aluminum with black type 3 anodizing
• Rail System: DD black RIS-II quad rail, constructed from anodized 6061 aluminum
• Suppressor Interface: Custom Allen Engineering collar for precise Allen Engineering AEM5 attachment
• Optics Compatibility: Optional ACOG (TA31RCO-M150CP-G) with green chevron reticle; BUIS compatible with Magpul (Front/Rear), Knights Armament, or Griffin Armament
• Mil-Spec Components: Integrated mil-spec charging handle; nitride BCG
• Finish: All-black upper configuration
• Overall Weight: 3 lbs, 7 oz
Intended Use: Complete tactical upper group for clone rifle enthusiasts, military applications, and federal demonstrations
Potomac Armory
Potomac Armory
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