In non-farm work, the permissible jobs and hours of work, by age, are as follows: 1  Youths 18 years or older may perform any job, whether hazardous or not, for unlimited hours; 2  Minors 16 and 17 years old may perform any nonhazardous job, for unlimited hours; and.
Semi-automatic shotguns with a barrel length of less than 469.9 mm (18.50 in) are considered restricted and any shotgun that has been altered so its barrel length is less than 457 mm (18.0 in) or if its overall length is less than 660 mm (26 in) is considered prohibited. backpacker shotgun has a short barrel and either a full-size stock or pistol grip, depending on legislation in intended markets. The overall length of these weapons is frequently less than 90 cm (35 in), with some measuring up at less than 63 cm (25 in).
the barrel length is from the base of the shell to the muzzle of the barrel. the overall is from the butt pad to the muzzle of the gun. even if the gun is 1/1000th of a inch too short it would be illegal and a felony. so generally to be safe never cut down to less than 26-1/4 or 18-1/4 for overall and barrel length.