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Product Discontinued by Manufacturer

Geissele Super Duty Complete 11.5in 5.56mm Upper Receiver has been discontinued by Geissele and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts, AR15 Upper Receivers yourself to try and find the perfect replacement for you!

Product Info for Geissele Super Duty Complete 11.5in 5.56mm Upper Receiver

The Geissele Super Duty Upper (Complete) features the latest in weapon technology available exclusively from Geissele Automatics. This 11.5" complete upper chambered in 5.56mm features a Geissele Sparkout Flash Hider mounted to an 11.5" Manganese Phosphate coated, CHF, Chrome Lined 1-7 twist barrel. Our barrels are precision machined and cold hammer forged utilizing the highest quality materials at our state of the art facility in North Wales, PA. The carbine length gas tube and Geissele Super Compact Gas Block with bomb-proof installation ensures reliability and optimal performance in extreme conditions.image

Included is a brand new, 10.5" Super Modular Rail MK16 that mates to the upper via a center aligning tab removing any chance of rail rotation. This rail is a variant of the 13.5" SMR MK16, currently fielded by USASOC and renowned by operators for their performance and comfort.

Also included is the Geissele Reliability Enhanced Bolt Carrier Group, Reliability Enhanced Bolt Carrier Group. This Nanoweapon coated BCG features a properly torqued and staked, chrome lined gas key. The Cam Pin is machined from advanced, medical steel known as H13 which is also coated with Nanoweapon for maximum corrosion and wear resistance. The Geissele Reliability Enhanced Bolt Carrier Group also features extended upper rails, providing greater stability and dramatically increasing feeding reliability.

The Geissele Reliability Enhanced Bolt Carrier Group comes with the Geissele Stressproof Bolt. Made from Carpenter 158+, directly developed with Carpenter Steel metallurgists to create a material that is cleaner and has less impurities. This makes our Stressproof bolt stronger and more fatigue resistant. The Geissele Stressproof bolt is also forged, not machined from barstock. This allows us to optimize the grain structure of the steel to yield a bolt capable of 5 times the life of a mil-spec bolt. Each bolt is rigorously inspected, high pressure tested, mag particle inspected and Nanoweapon coated.

All of these technologies and advancements combine to bring to market a true next-gen upper for the AR-15 platform. The Super Duty Complete Upper from Geissele Automatics offers unmatched performance, accuracy and reliability.

Package Contents:

  • Geissele Super Duty Complete 11.5in 5.56mm Upper Receiver

Magazine and Accessories

1–21 / 21
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Geissele Super Duty Complete 11.5in 5.56mm Upper Receiver Accessories

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Gun Triggers

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Gunsmithing Tools & Accessories

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Gun Parts and Accessories

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Gun Sights

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Gun Stocks

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Mounts, Rings and Accessories

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Related Products to Geissele Super Duty Complete 11.5in 5.56mm Upper Receiver

Geissele Super Duty Complete 11.5in 5.56mm Upper Receiver Unavailable & Discontinued Models

List of Unorderable Models

Geissele Super Duty Complete Upper Receiver, 5.56mm, 11.5in Barrel, Carbine Length, 1-7 Twist, Geissele Sparkout Flash Hider, Black, 11.5in, 08-218B , MPN: 08-218B , UPC: 817953027387 , Code: 1TO-UFH-GSGP5-08-218B
Geissele Super Duty Complete Upper Receiver, 5.56mm, 11.5in Barrel, Carbine Length, 1-7 Twist, Geissele Sparkout Flash Hider, Sand, 11.5in, 08-218S , MPN: 08-218S , UPC: 817953027370 , Code: 1TO-UFH-GSGP5-08-218S
Geissele Super Duty Complete Upper Receiver, 5.56mm, 11.5in Barrel, Carbine Length, 1-7 Twist, Geissele Sparkout Flash Hider, Green, 11.5in, 08-218ODG , MPN: 08-218ODG , UPC: 817953029152 , Code: 1TO-UFH-GSGP5-08-218ODG
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