Atrius Development Group X-Series Ambi Forced Reset Selector (ADG-FRS-AMBI-X) – Brand New Sealed

$275 shipped

Brand new, factory sealed Atrius Development Group Forced Reset Selector AMBI X (ADG-FRS-AMBI-X).

This is the X-Series ambidextrous 3-position forced reset selector specifically designed for SIG Sauer gas piston platforms:

  • MCX
  • MPX
  • Rattler
  • MCX-Spear LT Upper AR Conversion Kits

Safe / Semi / Super-Semi positions. Drop-in install with the new trip base + trip clutch system for universal fitment on these platforms. Heat-treated 4140 steel with black nitride finish. Made in the USA.

Never opened. Still in original packaging with QR code label.

Price is firm at $275 shipped via USPS Priority with tracking.


Will not ship to restricted states.  Buyer is responsible for knowing and complying with all applicable federal, state, and local laws. Not an NFA item.

Serious buyers only — Text me REDACTED/p>