I've attached the single action drawings. Basically, the broken off tabs are called the drawbar throw notch, which are just in front of the two ledges on the drawbar. The throw notch on the drawbar serves an important purpose at the end of the DA pull, where the hammer cams off of this notch, and heads toward the firing pin. This DA throw notch on the drawbar is redundant in SA.
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Ret. LE, FA Instr, S&W Armorer
Last edited by armorer951; 03-29-2020 at 11:27 AM.
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