Geissele Automatics Super Duty Pistol - 40mm Green - 11.5"

Manufactured by Geissele Automatics
SKU: 08-198-40GP
MPN: 08-198-40GP
Manufactured by Geissele Automatics
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Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal-Firearm License holder.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers.
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to



The Geissele Automatics Super Duty Pistol is a high-performance AR with so many great features it rivals many custom builds. This pistol represents the perfect marriage between Geissele’s notable Super Duty upper and lower. The upper boasts an 11.5-inch magnesium phosphate, cold hammer forged, chrome lined barrel with a 1:7 twist for optimal accuracy and unrivaled performance. The Super Duty lower is precision machined from 7075-T6 aluminum and features a SSA-E X Super Semi-Automatic trigger. 

The lower provides a Mil-Spec Geissele buffer tube with a Super-42 in H3 buffer ensuring this rifle is properly tuned out of the box. The Geissele Automatics Super Duty Rifle boasts a tier-1 M4A1 BCG machined from 158 carpenter steel with a chrome lined gas key and is properly torqued and staked. It features a 10.5-inch M-LOK rail that seamlessly integrates with upper receiver via an aligning tab, removing any chance of rail rotation. This Geissele Automatics Super Duty Pistol comes with a unique green finish, it is called 40mm Green because the parts in this rifle are anodized in the same dye tanks as military 40mm grenade cases.

  • 11.5" barrel
  • 5.56mm
  • 40mm Green 
  • Super Duty Lower Mil-Spec
  • Super Duty M4 Upper
  • Tier-1 M4A1 Mil-Spec, 158 Carpenter Steel Bolt Carrier Group
  • Geissele stressproof bolt
  • Geissele 10.5" M-LOK rail
  • SSA-E X Trigger
  • Cold hammer forged
  • Chrome Lined
  • 1-7 Twist
  • Super carbine gas system
  • Super compact gas block

Geissele Automatics manufactures confidence, offering quality triggers and components for the warfighter and competitor. They were established in 2004 with the mission to build the highest quality, reliable triggers for competition and their first trigger, the Hi-Speed National Match trigger, was so popular that they were asked by the Department of Defense to produce a select-fire trigger for the United States Special Operations. Again, it was a success and Geissele decided to bring a semi-automatic version to the civilian market for law enforcement and personal protection.
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Barrel CoatingManganese Phosphate
Barrel ContourMedium
Barrel Length11.5
Barrel LiningChrome
BrandGeissele Automatics
Caliber Gauge5.56 NATO
Gas System LengthCarbine
Gas System TypeDirect Impingement
Handguard10.5 in SMR MK16
Muzzle DeviceSureFire Closed Tine Warcomp
Thread Pattern1/2 X 28
Twist Rate1:7

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