Hard to say if they will remain legal but a Ruger Mini 30 (7.62x39) is light, short, and can be made to shoot quite well. Mine has an Accu Strut and a Tombstone trigger job.
M1 30 Carbine …. Less than 36” long and about 5 lbs. Flip peep sights for two distances. Used in hot jungles in SE Asia to the frozen hills of Korea.
Having trouble finding a good rifle for what I want it for.
My choice would be my Savage M99F in 308.
With requirements like yours I would be reaching for my Ruger American Ranch in 308, short 16.5" barrel, nice and light with detachable mag. Checks all your boxes.
But I don't like the muzzle brake on it and the mag feels flimsy. Other than that it is what it is, an affordable light and compact rifle.
Go with rifle configuration you are familiar with don't carry a lever if you are a bolt guy... Then practice with it.





























