When this change was implemented, the gun's forearm (pump handle) was lengthened and given more grooves - and the gun was re-named the Model 62A.
This rimfire rifle will cycle and fire 22 Short, Long, or Long Rifle ammunition interchangeably. Its barrel is round and tapered, with a nominal length of twenty-three inches (mine measures about 1/8" longer). Overall length from toe of butt to muzzle is 39-5/8", and it weighs in at a shade more than 5.5 pounds.
The photo above shows the left side of the rifle, which makes the takedown screw visible (above the trigger). The left side of the barrel is marked with the manufacturer's name and location, along with "MODEL 62A" and "22S.L.ORL.R." Its tubular magazine will accept and digest 15 rounds of 22 Long Rifle ammo.