Remington model 722 trigger...

[Mustang]

I'm trying to identify this trigger on my Remongton 722/possibly model 40 rifle.

Anyone able to help?

[ar15barrels]

It would typically be a 40x trigger in that era, but that trigger shoe looks like it can be moved as well as having all 3 screws accessible from below which is most definitely not typical of a 40x trigger.
There are several trigger makers that have disappeared over the last 60 years.
Have you pulled the stock off to look for a maker's mark?

[kendog4570]

Hart.

[LynnJr]

Hart still makes the original Walker designed trigger today so you can take the stock off and send them pictures.

Dan Armstrong at www.accu-tig in Alaska can answer any questions as well.

[ar15barrels]

Viola...
Good pictures of the Hart trigger:

https://forum.accurateshooter.com/threads/fs-early-remington-hart-2oz-trigger.3884434/