Geissele
Geissele Super MCX SSA Trigger
MCX-specific two-stage trigger derived from the CRANE-certified SSA, 4.25-4.75 lb non-adjustable pull
Quick Specs
- Price
- $297
- Weight
- 6 oz
- Brand
- Geissele
- Category
- trigger
Features
- •MCX-specific
- •Two-stage
- •4.25-4.75 lb pull
- •Drop-in
Where to Buy
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Geissele Super Mcx Ssa - M4 Curved Trigger, Black, 05-658
Compatibility Tags
Overview
The Geissele Super MCX SSA is the MCX-specific version of Geissele's Super Semi-Automatic trigger, packaged and supported for the SIG MCX family rather than standard direct-impingement AR lowers. It gives MCX owners a familiar Geissele two-stage duty trigger without relying on a standard AR SSA row.
The trigger is a two-stage design with an approximately 4.5 lb total pull weight and a non-adjustable duty-style feel. First-stage take-up is predictable; the second stage breaks cleanly, and reset is short and tactile. The Super MCX SSA is the right pick for shooters who want a conservative trigger upgrade on a Spear LT, Virtus, or Rattler and care about using an MCX-specific Geissele part.
This is the M4 curved 05-658 SKU. Drop-in install uses the standard 0.154" small-pin spec used on current MCX trigger housings.
Key Features
- MCX-specific design rated for piston bolt-carrier velocity
- Two-stage 4.25-4.75 lb pull, non-adjustable
- M4 curved bow, 05-658 SKU
- Standard 0.154 inch small-pin compatibility
- Drop-in install with no fitting required
- Geissele warranty applies on MCX use
Pros
- +Geissele warranty applies to MCX use unlike standard SSA/SSA-E in the same gun
- +SSA-style two-stage feel in an MCX-specific SKU
- +M4 curved 05-658 variant
- +Drop-in install, no gunsmithing needed
Cons
- −Premium pricing versus standard AR drop-ins
- −Non-adjustable pull weight, no 2.5 lb competition-style option
- −Specific to MCX, will not perform optimally in standard DI AR builds
- −Heavier pull than the SSA-E, by design for duty/duty-style use
Detailed Specifications
- pullWeight
- 4.25-4.75 lb two-stage
- pinSize
- 0.154 in (small-pin)
- compatibility
- SIG MCX (Spear LT, Virtus, Rattler, all variants)
- bowOptions
- M4 curved, 05-658 SKU
- Material
- Heat-treated tool steel
- installation
- Drop-in
- madeIn
- USA
- warranty
- Lifetime, valid on MCX use
Compatible Platforms
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Build Your Custom Configuration
Add the Geissele Super MCX SSA Trigger to your build and see how it enhances your platform.