The thumbhole stock came about because the 1989 AW import ban. In 1990 the importation of AKs and other "AWs" with the thumbhole stocks was deemed lawful because the thumbhole stock was for sporting purposes therefor it skirted the definition of an AW.
due to the safe act now my 10/22 is UNSAFE .. my front site was part of the muzzle break , so now i have a gun that has no sights .. Thanks FUAC for pray in spray with only 10 rounds ..