$249.95 - $359.95
Calculated at Checkout
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  • Modular design for individual personalization
  • MPX - Uses our 7.75" extension for a 13-3/8" Length-of-pull (LOP)
  • MCX/Rattler - Uses our 7.75" extension for a 13-3/16" Length-of-pull (LOP)
  • Offset extension mounts in 4 different configurations
  • Positively locks in both the open and folded position
  • 6061 and 7075 construction with Type II low gloss anodized finish
  • Can be configured for the A3 Tactical Steady-brace or Tailhook brace

A3 Tactical is proud to release our Modular Folding Arm Brace system for the popular SIG line of MPX/MCX firearms. This system is designed from the ground up to provide modularity in style, form, and function.  The proven Sig hinge (provided) utilizes a positive spring-lock for both the open and closed position, allowing the user to quickly release the brace from either position.

NOTE: This Modular folder uses the OE Sig hinge. Due to the small offset of the Sig hinge the brace rests against the side of the firearm when folded.

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