AR-15 SUPER DUTY MOD1 5.56X45 NATO COMPLETE UPPER RECEIVER – AR-15 SUPER DUTY MOD1 5.56X45 12.5” BBL COMPLETE UPPER DDC

Specifications

  • Cartridge: 5.56 x 45
  • Contour: Geissele
  • Style: Complete
  • Finish: Matte
  • Make: AR-15
  • Length: 12.5''
  • Make/Model: AR-15
  • Color: DDC
Super Duty MOD1 Complete Upper 5.56×45 NATO
 
The Geissele Super Duty MOD1 Upper (Complete) features the latest in weapon technology available exclusively from Geissele Automatics. This complete upper chambered in 5.56mm features a nanoweapon-coated HUXWRX Flash Hider-QD muzzle device mounted to a Manganese Phosphate coated, CHF, Chrome Lined 1-7 twist barrel. Geissele barrels are precision machined and cold hammer forged utilizing the highest quality materials at their 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, 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 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. 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.
 
NOTE: 13.9" AND 14.5" UPPERS INCLUDE PINNED AND WELDED MUZZLE DEVICE
 
Super Duty MOD1 Complete Upper Specifications:
  • CALIBER: 5.56MM
  • COLOR: Black or DDC
  • 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: SMR MK16
  • BARREL: Geissele Barrel, CHF, Chrome Lined, 1-7 Twist – Geissele Profile
  • GAS BLOCK: Super Compact Gas Block
  • CHARGING HANDLE: Airborne Charging Handle
  • MUZZLE: HUXWRX Flash Hider-QD 556
Description

Original price was: $1,450.00.Current price is: $1,223.26.

Super Duty MOD1 Complete Upper 5.56×45 NATO
 
The Geissele Super Duty MOD1 Upper (Complete) features the latest in weapon technology available exclusively from Geissele Automatics. This complete upper chambered in 5.56mm features a nanoweapon-coated HUXWRX Flash Hider-QD muzzle device mounted to a Manganese Phosphate coated, CHF, Chrome Lined 1-7 twist barrel. Geissele barrels are precision machined and cold hammer forged utilizing the highest quality materials at their 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, 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 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. 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.
 
NOTE: 13.9" AND 14.5" UPPERS INCLUDE PINNED AND WELDED MUZZLE DEVICE
 
Super Duty MOD1 Complete Upper Specifications:
  • CALIBER: 5.56MM
  • COLOR: Black or DDC
  • 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: SMR MK16
  • BARREL: Geissele Barrel, CHF, Chrome Lined, 1-7 Twist – Geissele Profile
  • GAS BLOCK: Super Compact Gas Block
  • CHARGING HANDLE: Airborne Charging Handle
  • MUZZLE: HUXWRX Flash Hider-QD 556

Out of stock

SKU 430107517 Category

Description

Super Duty MOD1 Complete Upper 5.56×45 NATO
 
The Geissele Super Duty MOD1 Upper (Complete) features the latest in weapon technology available exclusively from Geissele Automatics. This complete upper chambered in 5.56mm features a nanoweapon-coated HUXWRX Flash Hider-QD muzzle device mounted to a Manganese Phosphate coated, CHF, Chrome Lined 1-7 twist barrel. Geissele barrels are precision machined and cold hammer forged utilizing the highest quality materials at their 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, 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 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. 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.
 
NOTE: 13.9" AND 14.5" UPPERS INCLUDE PINNED AND WELDED MUZZLE DEVICE
 
Super Duty MOD1 Complete Upper Specifications:
  • CALIBER: 5.56MM
  • COLOR: Black or DDC
  • 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: SMR MK16
  • BARREL: Geissele Barrel, CHF, Chrome Lined, 1-7 Twist – Geissele Profile
  • GAS BLOCK: Super Compact Gas Block
  • CHARGING HANDLE: Airborne Charging Handle
  • MUZZLE: HUXWRX Flash Hider-QD 556

Additional information

Weight 4.66 lbs
Contour

Geissele

Style

Complete

Finish

Matte

Make

AR-15

Length

12.5''

Cartridge

AKK_5.56 x 45

Make/Model

AR-15

Color

DDC

Frequently Asked Questions

Are these brass cases and reloading components factory-new or once-fired? +

We stock both premium factory-new components and high-quality once-fired brass. Please check the specific product listing title and description carefully; once-fired brass is fully inspected, but we always recommend resizing and inspecting prior to priming and powder charging.

Will this case trimmer gauge or die set work with my progressive press setup? +

Our standard reloading dies and case length trimmer accessories utilize industry-standard threads (typically 7/8"-14) compatible with major single-stage, turret, and progressive presses like RCBS, Hornady, Lee Precision, and Dillon. Caliber-specific trim gauges must match your exact brass caliber.

Do you enforce shipping restrictions on powder, primers, or live ammunition? +

Yes. Non-hazardous reloading equipment (dies, case length trimmers, gauges, and unprimed brass) ships via standard ground carriers with no extra fees. Any orders containing smokeless powders or primers will incur standard federal HazMat handling fees and cannot be shipped via air transportation.

How can I track my shipment to ensure delivery safety? +

Precision reloading gear is valuable, so all orders are shipped with tracking enabled. As soon as your package is dispatched from our inventory warehouse, a tracking number will be emailed to you. You can monitor your shipment directly on our Track Order page using your unique Order ID.

Can I return precision measuring tools or die components if they don’t fit? +

We accept returns on unused, unaltered tools, case preparation equipment, and unopened component boxes within 30 days of item delivery. Due to safety and strict quality control on the reloading bench, we absolutely cannot accept returns on opened packs of primers, smokeless powder, or processed brass casings.