Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, with hands-on install experience on AR/AK/Glock platforms.
The Geissele Super SCAR Trigger is a non-adjustable, two-stage trigger built exclusively for FN SCAR rifles. Modeled after Geissele’s SSA design, it delivers a 3.2-4.6 lb total pull weight split across two distinct stages: 2-2.8 lbs on the first stage, 1.2-1.8 lbs on the second. This staging provides a tactile wall before break, giving you predictable control under rapid fire or precision engagement. Factory-set tolerances mean no field adjustments — the trigger arrives ready to install and run.
How It Works
The Super SCAR uses a two-stage design: you take up slack in the first stage, then encounter a defined wall before applying final pressure to break the shot. The spring pack and sear geometry are machined to mil-spec standards, ensuring consistent engagement across temperature shifts and extended firing schedules. First-stage travel removes pre-travel; second-stage break is crisp with minimal overtravel. Reset is short and audible, allowing fast follow-up shots without losing sight picture. This trigger is drop-in for FN SCAR trigger housings — no fitting, no stoning, no modification. Attempting to adapt it to non-FN platforms voids warranty and compromises function.
The Numbers
| Spec | Value |
|---|---|
| Type | Two-stage, non-adjustable |
| Platform | FN SCAR (16S, 17S, 20S) |
| Pull weight | 3.2-4.6 lbs total (stage 1: 2-2.8 lbs, stage 2: 1.2-1.8 lbs) |
| Reset | Short, audible |
| Material | Mil-spec steel, hardened sear surfaces |
| Drop-in | Yes, FN SCAR trigger housings only |
| Compliance | Semi-automatic (one round per pull) |
| Manufacturer | Geissele Automatics |
The Super SCAR ships with spring pack, trigger bow, hammer, and all pins required for installation. Compatible with all FN SCAR variants — 16S, 17S, and 20S. Installation requires standard AR-pattern punch set and knowledge of SCAR lower receiver disassembly. For more precision trigger options, explore the full Geissele trigger lineup.
Safe Handling & Compliance
Per current ATF guidance, the Geissele Super SCAR is classified as a semi-automatic trigger assembly — each round fired requires a discrete trigger function, and the device does not convert a firearm to automatic fire. Regulatory status has changed before and may change again; verify current federal and state law before ordering.
- Observe the four rules of firearm safety: treat every weapon as loaded, never point at anything you’re not willing to destroy, finger off trigger until sights on target, know your target and what’s beyond it.
- Some states restrict aftermarket trigger assemblies or impose pull-weight minimums. Verify state and local laws before installation.
- Installation requires lower receiver disassembly. Clear the weapon, remove magazine, and lock bolt to rear before beginning work. Test function with snap caps before live fire.
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