Starting with the Alpha Competition trigger platform, the Ultimate Builder’s Kit (UBK) for Glock Gen 3-4 also includes a striker, striker spring, connector, safety plunger, and safety plunger spring. The striker, made from stainless steel, matches the geometry of the Alpha Competition sear, while the safety plunger matches the geometry of the Alpha Competition trigger bar and is made from tool steel. All Ultimate Builder’s Kit parts are heat treated and NP3 coated for durability and increased lubricity.

With a factory set pull weight of 2.5 to 3 pounds, the Timney Alpha Competition UBK trigger kit answers the call for a trigger that maintains the feel of a Timney Trigger all while upholding the dependability of the Glock system. Through an improved trigger design, Timney has created an upgraded trigger that retains the reliability of the Glock while offering a lighter pull weight and a smoother feel from the UBK.

Fits: Medium frame, double stack Glock Gen 3-4

***not compatible with single stack or large frame handguns (i.e. 10mm or .45acp)

ONLY COMPATIBLE WITH STOCK GLOCK PISTOLS - INTENDED FOR COMPETITION USE ONLY.