▁was ▁' Model ▁of ▁ 1 9 5 3 '. ▁ ▁This ▁is ▁sometimes ▁called ▁the ▁' pre - 3 4 '. ▁ ▁In ▁ 1 9 5 8 , ▁S & W ▁renamed ▁it ▁as ▁the ▁Model ▁ 3 4 ▁and ▁began ▁stamp ing ▁the ▁models ▁thus . ▁ ▁This ▁production ▁continued ▁till ▁the ▁early ▁ 1 9 6 0 s , ▁when ▁the ▁p istol ▁was ▁red es igned ▁using ▁the ▁larger ▁J - frame ▁J - frame ▁and ▁market ed ▁as ▁the ▁model ▁ 3 4 - 1 . ▁ ▁Due ▁to ▁the ▁growing ▁popular ity ▁of ▁st ain less ▁steel ▁revol vers , ▁the ▁. 2 2 /. 3 2 ▁Model ▁ 6 3 ▁Kit ▁Gun ▁was ▁released ▁in ▁ 1 9 7 7 ▁( with ▁the ▁same ▁design ▁as ▁the ▁ 3 4 - 1 ), ▁the ▁. 2 2 ▁W MR ▁Model ▁ 6 5 1 ▁in ▁ 1 9 8 3 , ▁and ▁the ▁. 3 2 ▁Mag num ▁Kit ▁Gun ▁in ▁ 1 9 9 0 . ▁ ▁There ▁was ▁a ▁Kit ▁Gun ▁Air weight ▁( Model ▁ 4 3 ) ▁and ▁a ▁Kit ▁Gun ▁chamber ed ▁in ▁. 2 2 ▁Win chester ▁Mag num ▁R im fire ▁(. 2 2 ▁W MR , ▁the ▁Model ▁ 5 1 ), ▁the ▁Target ▁version ▁with ▁ 6 " ▁bar rel ▁( Model ▁ 3 5 ), ▁as ▁well ▁as ▁the ▁standard ▁Kit ▁Gun . ▁All ▁three ▁were ▁available ▁with ▁adjust able ▁s ights . ▁ ▁The