Geissele Automatics

Geissele Super Duty Upper 5.56mm - 16" Black

$979.00
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The Geissele Super Duty Upper (Complete) features the latest in weapon technology available exclusively from Geissele Automatics. This 16.25” complete upper chambered in 5.56mm features a Nanoweapon coated Surefire SF3P mounted to an 16.25” Mag Phosphated, 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.

Included is a brand new, 15” 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 REBCG, Reliability Enhanced Bolt Carrier Group. This Nanoweapon coated BCG is machined from mil-spec 8620 steel, with 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 REBCG also features extended upper rails, providing greater stability and dramatically increasing feeding reliability.

The REBCG 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 the Geissele Stressproof bolt stronger and more fatigue resistant. The Geissele Stressproof bolt is also forged, not machined from barstock. This allows Geissele 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.

Geissele Nanoweapon, also known as Picatinny DSL (Durable Solid Lubricant) is exclusive to Geissele Automatics. It offers a level of corrosion, wear and abrasion resistance that is currently unmatched among firearm coatings. Nanoweapon is applied at low temperatures as to not affect the metallurgy of the part being coated. It has a surface hardness roughly equivalent to synthetic diamond. It is harder than sand, which allows Nanoweapon to easily reject carbon. This makes cleaning a breeze and allows the firearm to operate normally with less lubrication.

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.

 

What is Geissele Nanoweapon?

Geissele Nanoweapon (also known as Picatinny DSL) is a family of Durable Solid Lubricant coatings which was developed by ARDEC. It is available exclusively from Geissele Automatics. We continued the development of Picatinny DSL so that its level of corrosion, wear and abrasion resistance is currently unmatched among firearm coatings. Nanoweapon is applied at low temperatures so that the underlying metallurgy of the part is non effected by the application process. Our coating also has a surface hardness roughly equivalent to synthetic diamond. This makes Geissele Nanoweapon harder than sand, easily rejecting carbon and making cleaning a breeze, on top of allowing the firearm to operate normally with less lubrication.

 

SPECS:

   
CALIBER:  5.56MM
COLOR:  Black
RECEIVER:  Super Duty Upper w/ cam Pin cut-out
BOLT CARRIER GROUP:  Nanoweapon Reliability Enhanced BCG
BOLT:  Geissele Stressproof Bolt with Asymmetric Cam Pin
RAIL:  15" SMR MK16
BARREL:  16.25" Geissele Barrel, CHF, Chrome Lined, 1-7 Twist.
GAS SYSTEM:  Mid Length
GAS BLOCK:  Super Compact Gas Block
CHARGING HANDLE:  Airborne Charging Handle
MUZZLE:  Nanocoated SF3P

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