The Harris 12-25" or 13-27" is what you want.
I'm 6'3" and use a 12-25" for sitting, getting above the low veg. The 13-27" would have been a bit better for me.
12-25" fully extended:
12-25" fully retracted:
(no doggy ears were injured, I was dry firing.....grin)
12-25" stowed, under 22" bbl/brake.