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Old 06-18-2014, 10:06 PM
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ko41 ko41 is offline
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Quote:
Originally Posted by sw282 View Post
Anyone know the difference between a 657-3 and a 657-4 ??

thanks
282
From Standard Catalog of Smith & Wesson 3rd edition....
"657-4 (1997): Change frame design to eliminate cylinder stop stud; eliminate serrated tangs; change to MIM hammer with floating firing pin; change to MIM trigger; change internal lockwork."

KO
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