Troy McManus

A new aftermarket replacement trigger on the market for Glock handguns has generated some questions recently. Let’s answer those so there’s no confusion.

I was first introduced to the TriggerTech Ace trigger at the IPSC Canada Nationals last year. At the time, I remarked to the representative demonstrating the trigger that it would not be legal in USPSA, as it does not replicate the trigger safety on the Glock handgun. There are many other aftermarket replacement triggers that do include the trigger safety lever, and all of those are legal replacements per the USPSA and SCSA rules. However, the trigger safety on Glock handguns is considered the primary safety: it’s external and can be tested for function. The TriggerTech Ace does not replicate that feature, instead, it shrouds the trigger with another trigger, in essence, and defeats the primary safety function of the lever safety. Therefore, it’s not legal as a replacement trigger in any USPSA or SCSA division.