Pro Adjust Trigger

Adjustable Flat Trigger
for the SIG SAUER® P320® and X-Five


Our PRO ADJUST patent pending design is the first to allow you to adjust both trigger pre-travel and over travel. Overall trigger travel can be reduced by up to 60%, providing a short crisp trigger pull and reset. The increased leverage reduces the trigger pull by 25%. Our design features a center rib and curved tip to provide fast and consistent indexing.

Available in Black & Silver hard annodized finish.



  • Pre-travel (Take-up) and over-travel adjustments reduce total travel by up to 60%, dependant on individual gun tolerances. (WARNING! Trigger may be adjusted to an unsafe condition. Keres Dynamics LLC. recommends installation and adjustments are only performed by a competent, licensed gunsmith or licensed armorer.)
  • Short reset allows for faster follow up shots.
  • Flat face provides increased leverage reducing trigger pull weight by up to 25%.
  • Vertical rib and curved tip provides faster indexing and greater feel both with and without gloves.
  • Rib geometry is optimized to provide a familiar feel for shooters transitioning from GLOCK® handguns.
  • Vertical breakover provides unmatched feel and confidence while holding on target.
  • Precision machined from ultra-high strength Tennalum® 7068-T6511 aluminum giving our parts higher yield strength and equivalent hardness to 4130 Cr-Mo steel, yet remains as light as other 7000 series alloys. Compared to 6061 aluminum, the yield strength of Tennalum® is 250% higher. Scroll down for more information.
  • All Keres triggers are designed to be used with factory upgraded or newer models.
  • MIL-A-8625 Type III Hard anodizing with Teflon impregnation for reduced friction and wear.
  • Lifetime replacement warranty

Material Selection

At Keres Dynamics, we recognize a number of customers were concerned with the military drop test results of the P320. While SIG addressed the issue with their upgrade program, we wanted to design our parts to be as light or lighter than the factory upgraded triggers but with the same strength and reliability. In our research, we came upon Tennalum® 7068-T6511 aluminum. Tennalum® gives our parts greater strength than 4130 chromoly steel, but with the lighter weight of aluminum. By comparison, Tennalum® is nearly 250% stronger than 6061 aluminum, but only 1/3 the weight of 4130 steel. This made Tennalum® an ideal choice to achieve our design and performance goals while maintaining the light weight necessary to meet or exceed the drop test standards placed on the P320 for service. Because of this material selection, we are able to manufacture a feature-rich, adjustable trigger that is 1/2 the weight as the factory trigger, but just as strong.