Geissele Super Semi-Automatic Enhanced X Trigger | SSA-E X

The Geissele Super Semi-Automatic Enhanced X (SSA-E X) Trigger with Lightning Bow is a two-stage trigger designed for AR-15 and AR-10 platforms. It features a hybrid curved/flat Lightning Bow profile, offering a wider contact surface for consistent finger placement and control. The two-stage design provides a defined first stage followed by a lighter second stage break, supporting controlled and repeatable trigger operation.

This trigger incorporates a durable coated finish on key components to support wear resistance, corrosion protection, and reduced friction during operation. The SSA-E X is commonly selected for applications where a lighter pull weight and refined break are desired, while maintaining compatibility with standard mil-spec lower receivers. It is not adjustable and is not compatible with Sig MPX, MCX, or pistol caliber carbine AR variants.

Specifications

• Platform compatibility: AR-15 and AR-10 (mil-spec pattern)
• Trigger type: Two-stage
• Trigger bow: Lightning Bow (hybrid curved/flat, wide profile)
• First stage pull weight: 2.0 – 2.5 lbs
• Second stage pull weight: 0.9 – 1.3 lbs
• Total pull weight: 2.9 – 3.8 lbs
• Adjustable: No
• Pin size: Mil-spec
• Coated components for wear and corrosion resistance
• Not compatible with Sig MPX, Sig MCX, or pistol caliber carbine AR variants