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Geissele Automatics

Geissele Automatics is a premier name in precision firearms and components, known for setting industry standards in quality, innovation, and durability. Whether you're outfitting a duty rifle or enhancing your competitive edge, Geissele delivers mission-grade performance trusted by military professionals and discerning civilian shooters alike. From world-class triggers to battle-proven upper receiver groups, Geissele Automatics represents unmatched engineering in every component.

Engineered for Excellence

Every Geissele product is built to exceed military specifications, ensuring superior performance in the harshest environments.

Duty-Grade Reliability

Tested and trusted by elite warfighters, Geissele’s URG-I and SMR platforms provide unmatched dependability under pressure.

Precision-Driven Performance

From trigger pulls to barrel harmonics, Geissele’s designs maximize accuracy without sacrificing speed or control.

Product Focus

Super Duty Rifle

The Geissele Super Duty Rifle is a fully built AR-15 platform featuring top-tier components straight from the factory. Outfitted with a 16" Cold Hammer Forged barrel, Geissele’s SSA-E X trigger, and the proven Super Modular Rail (SMR) MK16, this rifle is built for serious operators and demanding enthusiasts. The Super Duty series integrates high-performance features for enhanced recoil control, durability, and long-range precision—all without compromise.

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Super Modular Rail (SMR) MK4

The SMR MK4 delivers strength, modularity, and lightweight performance. With M-LOK compatibility and Geissele’s proprietary center-aligning system, the MK4 ensures a rock-solid mount and optimal accessory placement. Machined from aircraft-grade aluminum, it balances heat dissipation and structural integrity, making it ideal for tactical builds or duty rifles. Whether you're running lights, lasers, or foregrips, the SMR MK4 offers a reliable foundation.

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Geissele Automatics URG-I

Developed for U.S. Special Operations Command, the URG-I (Upper Receiver Group Improved) is the pinnacle of battle-tested design. Featuring a 14.5" CHF barrel, a pinned gas block, and the MK16 rail system, it offers superior reliability, reduced recoil, and exceptional accuracy. This upper receiver group is built to meet the demands of combat environments and is trusted by military professionals and civilians seeking professional-grade equipment.

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Frequently asked questions

What is Geissele Automatics, and why is it trusted?

Founded by Bill Geissele, Geissele Automatics LLC quickly became a top-tier manufacturer of precision AR components. Their gear is used by elite military and law enforcement units worldwide, known for quality and dependability.

What are Geissele’s most popular products?

Top sellers include the Super Duty Rifle, the URG-I upper receiver, the SSA/SSA-E triggers, and the Super Modular Rail (SMR) series such as the MK4 and MK16.

Is the Geissele URG-I civilian legal?

Yes, Geissele offers the URG-I upper as a civilian-legal component. While it shares many specs with military-issued versions, it complies with federal regulations for civilian use.

What makes the SMR MK4 different from other handguards?

The SMR MK4 features Geissele’s center-aligned barrel nut system for improved accuracy, unmatched strength, and optimal mounting for M-LOK accessories.

Are Geissele Super Duty rifles ready out of the box?

Absolutely. Super Duty rifles come fully assembled with premium Geissele parts—ideal for shooters who want a no-compromise, battle-ready platform right from the start.

How do I maintain Geissele components?

Geissele components should be cleaned using standard AR-15 maintenance procedures: solvent, light brushing, and proper lubrication of moving parts. Avoid excess oil near triggers to preserve crisp pull characteristics.

About

Geissele Automatics is a leading manufacturer of high-performance firearm components, specializing in precision triggers, upper receivers, and handguards. Known for exceptional craftsmanship and battlefield reliability, Geissele products are trusted by military professionals, law enforcement, and civilian shooters who demand duty-grade quality.

History

Popular Models

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