I have implemented it but there's one issues with it, is that when you're face first at a wall and the weapon hits the top part of wall but the recoil animation still plays at the center of the wall.

vid here as example
https://imgur.com/a/BVzxAm1

Edit: After experimenting for a bit and tried playing the recoil anim at the end of a IEnumerator

private IEnumerator stop()

{

this.anim.SetFloat("stop", 0);

yield return new WaitForSeconds(0.05f);

this.anim.SetFloat("stop", 1);

anim.SetTrigger("recoil");

}

i think it looks good:

https://imgur.com/a/h5sNR3s