Weather broke from single digits to balmy 26 *. So I decided to do some manual work to keep warmer.
I decided to finely make MYSELF a set back trigger for my own Uk Tommy triggered prototype gun. ( Firefox) I’ve made them in brass, aluminum many times for various guns. ( brass for others ,as I despise brass, brass has no place on a gun).
I decided to get creative and try one out of 4140 plate. (I had some left over from some sears I made) ..
WONT BE DOING ONE AGAIN SOON… 4140 isn’t aluminum …
This trigger is a Uk Tommy /Longbow unit in my own prototype power gun. The blade is set back quite a bit and those units have a downward angle attachment block the blade screws to. It’s not so easy to just shave the top as the pull changes and the sear angle pressure gets affected. So to keep things in the same geometry as factory I had to shave a bit out of the inner trigger guard. ( in hindsight, if I was making a new stock I’d just drop the mount of the guard 2 mm but this was an existing stock.)
It’s in and shooting… The pull is much better as your not reaching for the trigger and the feel is smoother. I’ll re powder coat the guard and be done. Some final buffing to shine up the trigger blade.
The 4140 machines and hand works well but it’s three times as hard as brass or aluminum. Sharp files and patience is needed..
I decided to finely make MYSELF a set back trigger for my own Uk Tommy triggered prototype gun. ( Firefox) I’ve made them in brass, aluminum many times for various guns. ( brass for others ,as I despise brass, brass has no place on a gun).
I decided to get creative and try one out of 4140 plate. (I had some left over from some sears I made) ..
WONT BE DOING ONE AGAIN SOON… 4140 isn’t aluminum …
This trigger is a Uk Tommy /Longbow unit in my own prototype power gun. The blade is set back quite a bit and those units have a downward angle attachment block the blade screws to. It’s not so easy to just shave the top as the pull changes and the sear angle pressure gets affected. So to keep things in the same geometry as factory I had to shave a bit out of the inner trigger guard. ( in hindsight, if I was making a new stock I’d just drop the mount of the guard 2 mm but this was an existing stock.)
It’s in and shooting… The pull is much better as your not reaching for the trigger and the feel is smoother. I’ll re powder coat the guard and be done. Some final buffing to shine up the trigger blade.
The 4140 machines and hand works well but it’s three times as hard as brass or aluminum. Sharp files and patience is needed..
