The Timney single-stage trigger for the Sig MPX (brand part no. 683) is a drop-in upgrade built from steel with an aluminum housing, delivering a consistent 4.5-pound pull through a straight trigger shoe. Built specifically for the Sig MPX platform, this trigger swaps in without fitting or gunsmithing, giving MPX owners a cleaner, more consistent break than the factory trigger group. Finished in black, it’s a straightforward way to improve trigger feel on a platform that sees heavy use in competition and defensive training alike.

Key Specifications

• Built specifically to fit the Sig MPX platform.
• Delivers a consistent 4.5-pound pull.
• Built as a single-stage trigger.
• Finished with a straight trigger shoe.
• Constructed from steel for the working parts.
• Housing built from aluminum to keep weight down.
• Finished in black.
• Installs as a true drop-in trigger with no fitting required.

Frequently Asked Questions

What is the pull weight on this trigger? A consistent 4.5 pounds.

Do I need to fit this trigger to my MPX? No, it’s a drop-in trigger built specifically for the Sig MPX.

Buy the Timney Trigger for Sig MPX

Clean up your MPX’s trigger feel with a proven Timney drop-in. Order it from our Timney lineup, part of our AR triggers selection, and get it shipped fast from our Lubbock, Texas gun shop.