M1 Trigger Jobs

It’s been a while since I added a how to so I thought now was the time. This time I’m excited to bring you a piece of the genius of Mr. John C. Garand. The man had no end to his engineering prowess.

M1 Garand Trigger Group

M1 Garand Trigger Group

When it comes to the triggers most people never see it taken off of the rifle. So to start things off you need to see it. Even just a picture will speak volumes to the simplicity and general intelligence that went into this rifle.

No this is so simple that I don’t want you to miss it. John C. Garand was so smart that engineered in a way to do a trigger job on it. Now I don’t just mean stone this surface or polish here or there. The proper angle that the stone needs to be stoned is engineered into the trigger parts.

Now just for a minute here let me back up and the beginning of the job. To start this I need to say that I suggest taking your rifle to a qualified gunsmith to have this done. I am writing this for your own understanding only. If you decide to take this upon yourself then do so at your own risk.

Now that being said lets talk about tools. A good set of trigger weights is absolutely necessary. This is a trigger that you can take too much away and destroy the function of the trigger. New parts will have to be procured and you’ll have to start all over again. I would say, for safety sake, 4 pounds is about perfect. When the trigger breaks it will be crisp enough that it will feel lighter than 4 pounds. The other crucial piece of equipment will be the stones themselves. I recommend the great stones available from my friends at Brownells.

Stone shown in the right angle

Stone shown in the right angle

 Now back to the job. There needs to be enough material removed to increase the quality of the trigger pull without  disrupting safety function. Now with the hammer realised, as shown in the picture, oil your stone and lay it across the top point of the hammer and the secondary sear. Maintain contact with those points and enhance the surfaces in a forward and backward movement. Weigh the trigger. If more needs to be done, you will go through this cycle a few times, then repeat the the above sequence. When the trigger weight is satisfactorily at 4 pounds clean the trigger, oil it properly and check the trigger weight while installed an the rifle. You may see a slight increase in the weight. Well, you know how to take care of that problem. Just do so judiciously and carefully.

Now once you have the trigger just right with it installed on the rifle, it’s clean, and properly oiled the hard part of the job starts. Are you ready for this. Go shoot it because you’re done. That’s right. John C. Garand is so smart he engineered the proper angle to do the trigger job right into the parts. There’s no stripping down the mechanism and going crazy on multiple surfaces. Nope there is just the one angle and you’re done.

No wonder I love that rifle so much.

4 Comments

Filed under Firearms, Gunsmithing

4 responses to “M1 Trigger Jobs

  1. Pingback: M1 Trigger job - M14 Forum

  2. Arthur

    What a crock! What angle do I lay my stone? Which part has the sear surface, and which has the sear edge? How do you assure the edges are parallel to each other? One paragraph is hardly enough to describe what really needs to be done!

  3. Cris Berget

    This DIY Guide is spot on! I’ve done this and it worked perfectly. Don’t be misled by the incorrect prejudice that all trigger jobs require the removal of metal from the sear. This method allowed me to reduce a 6 pound trigger down to a 4.5 lb trigger. I have achieved as low as 3.5 pounds without having a negative effect on the disconnector on another M1.

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