MPN: 05-400 / 05-483


  • Geissele Automatics’ first true single-stage trigger for the AR Platform
  • Non-adjustable ~3.5 lb. (pull weight) single-stage precision trigger
  • No take up and super clean break
  • Reset is short yet still distinct, giving excellent feedback to the shooter
  • Recommended for applications such as hunting, target Shooting, or precision shooting


  • Finish: Black Oxide
  • Type: Single-Stage
  • Total Pull Weight: 3 lbs. - 3.75 lbs.
  • Pin Size: Small Pin (.154)
  • Trigger Style: Curved or Flat Trigger


  • Mil-Spec AR-15

*Not compatible with the Sig MPX/MCX weapons or Pistol Caliber Carbine AR variants.


  • 1x Geissele SSP Trigger
  • 1x Geissele SSP Hammer
  • 1x Disconnector
  • 1x Hammer Spring
  • 1x Trigger Spring
  • 1x Disconnector Spring
  • 2x Trigger/Hammer Pins


The single-stage precision trigger from Geissele is the company’s first true single-stage trigger for the AR platform. The Geissele SSP trigger is constructed with high-quality materials and state-of-the-art manufacturing methods to produce a trigger that offers the shooter both superior features and unsurpassed performance.

Enhanced Performance

The Geissele single-stage trigger is specifically designed to provide shooters with the confidence to handle any shooting situation. The trigger is factory set at a non-adjustable 3.5 pounds of pull for an extremely crisp and consistently clean break. In addition, the trigger is engineered to have short and distinctive resets that provide you with precise feedback and is the perfect choice for all target, rapid-fire, and hunting applications.

Quality Construction

The Geissele SSP Trigger is cut from S7 tool steel and then precision machined with wire EDM technology for maximum reliability and service life. The trigger comes in both flat and curved styles and has a durable, corrosion-resistant black oxide coating. The trigger is made to military specifications and is compatible with many AR-15 platforms. However, the SSP trigger is not compatible with pistol-caliber carbine AR platforms.

Easy Installation

The Geissele single-stage trigger is drop-in ready, and installation requires no special tools, and no professional gunsmithing knowledge is needed. Due to the trigger’s non-adjustable pull, the SSP trigger requires no adjustment after installation.

*All trigger pull-weights are approximates.

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