$206.99
11 in stock
Online inventory may differ from in-store availability.
Quick turnaround so you get your gear sooner.
Trusted checkout with industry-standard protection.
Keeping Traditions Alive Since 1953
Secure Transactions provided with 
The stock trigger on a Sig MPX gets the job done, but it's on the heavy and gritty side. The Timney 683 replaces it with a self-contained, drop-in unit that's factory tuned to a crisp 4.5 lb single-stage pull with no creep. Timney worked directly with Sig on this design, so it's built specifically for the MPX platform rather than adapted from something else, and that shows in the way it breaks clean and resets fast.
This one is engineered for the pounding a pistol caliber carbine dishes out. The trigger, hammer, and bridge are heat-treated steel, and the housing is machined from 6061-T6 anodized alloy. The hardened steel bridge is the key piece here, protecting the trigger components from the aggressive bolt blowback that PCCs are known for. The straight, flat shoe gives you a consistent finger placement and a predictable break, which is exactly what you want when you're running the gun fast or trying to squeeze out better accuracy.
No gunsmith needed. Once you pull the factory trigger, you reuse your original hammer and trigger pins, and the assembly plays nice with your factory safety plus many aftermarket safeties like Timney's own short-throw ambidextrous unit. Set screws in the housing lock everything down and keep the pins from walking out under recoil. A couple things worth knowing before you start: the trigger comes with a thin base plate that goes underneath to protect your receiver from the set screws, and there's a bridge that needs to be oriented with the beveled edge facing the safety selector. Take your time, get the orientation right, and it drops in clean. All you really need is a punch and a hex wrench.
The 4.5 lb pull is non-adjustable and set at the factory, so there's nothing to tune or fuss with. It lands in the sweet spot between a heavy mil-spec trigger and a featherweight race trigger, which makes it a smart pick for range days, competition, and general shooting alike. Finished in black to match the rest of your MPX.
No. The 683 is a self-contained, drop-in assembly that reuses your MPX's original hammer and trigger pins. You just need a punch and a hex wrench, and set screws in the housing lock everything in place. Take a minute to get the bridge and base plate oriented correctly and it goes in clean at your bench.
No, the pull weight is fixed. It's factory tuned to a crisp 4.5 lb single-stage break with no creep, so there's nothing to set or fine-tune. That weight sits right in the middle between a heavy mil-spec trigger and a lighter race trigger, which makes it versatile for range and competition use.
Yes. It retains the factory safety interface, so your original safety works as it should. It's also compatible with many aftermarket options, including Timney's own short-throw ambidextrous safety if you want to upgrade that too.
Pistol caliber carbines like the MPX generate aggressive bolt blowback that can be tough on trigger components. The hardened steel bridge is designed to take that punishment and protect the internals, which helps the trigger hold up over the long haul. It's one of the reasons this unit is built specifically for the MPX rather than borrowed from another platform.
| UPC | 081950683000 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 683 |
| Color | Black |
| Length | 7.2500 |
| Model | |
| Product Type | Drop-In Trigger |
You must be logged in to post a review.
Reviews
There are no reviews yet.