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.
Barrel Coating: Manganese Phosphate
Barrel Contour: Medium
Barrel Length: 11.5
Barrel Lining: Chrome
Brand: Geissele Automatics
Caliber Gauge: 5.56 NATO
Gas System Length: Carbine
Gas System Type: Direct Impingement
Handguard: 10.5 in SMR MK16
Muzzle Device: SureFire Closed Tine Warcomp
Thread Pattern: 1/2 X 28
Twist Rate: 1:7
MPN#: 08-198-40GP

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