Umarex Trevox Breakbarrel Pistol “Full Review” by Airgun Detectives

This is a full and complete review of the Umarex Trevox .177 Breakbarrel Pistol. This features the TNT Gas piston. We will show you the performance. #staytunedforairgundetectives​​

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Umarex Trevox Trigger Modification: There is a Phillips Head screw in the front portion of the trigger. I replaced it with a M5 x16mm Allen bolt. Adjust the screw inward (clockwise) to the point the safety still engages (the gun needs to be cocked for proper adjustment so always point in a safe direction and remember not to dry fire) if you turn the screw in too far the safety will not engage so simply back out the screw just enough so you can still push in the safety button. This will cut length of trigger pull in 1/2 and make this a very functional trigger. Unfortunately, is does not lighten the trigger but just shortens the pull. This does not permanently modify the gun, you can at any time reinstall the stock screw if necessary. Your next option is to lighten the trigger. Don’t try this unless you are mechanically inclined or have a professional Airgun-Smith do this. In addition to replacing the trigger screw with the M5 (See Above) Remove the stock assembly, 3 Phillips screws. Be careful with the spring-loaded pin in the bottom of the stock that’s used to engage the safety, just in case it comes out. The trigger and sear are held in with pins (one each) and can be easily removed. Take a picture so you know exactly how to reassemble. Take the trigger out and remove the spring that is held in with the same pin. You are not going to re-install this spring. That alone will change your trigger to 4.75 lbs. I then removed the sear, another pin, and replaced that spring with a ballpoint-pen spring which I cut down to size. Put the smooth uncut portion in the top arm and the cut portion on the flat part of the sear. Re-install, again leaving the “trigger” spring off. You don’t need a spring here. It is that simple. Your trigger will now break under 3 lbs.

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