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Smith & Wesson Model 638 vs Smith & Wesson Model 640

Smith & Wesson Model 638 facing right

Smith & Wesson Model 638

DA/SA J-Frame Revolver Chambered in 38 Special +P
vs
Smith & Wesson Model 640 facing left

Smith & Wesson Model 640

DAO J-Frame Revolver Chambered in 357 Magnum

Dimensions

 LengthLHeightHWidthWWeightW
Model 6386.3 in4.2 in1.3 in14.6 oz
Model 6406.6 in4.7 in1.25 in22.1 oz

Details

 BarrelBBL Trigger Website
Model 6381.87 in DA/SA smith-wesson.com
Model 6402.13 in DAO smith-wesson.com

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Handguns
Smith & Wesson Model 638
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Smith & Wesson Model 640
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Smith & Wesson
Model 638
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Smith & Wesson
Model 640