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Smith & Wesson Sigma Series

Parts listed here are specific to Smith & Wesson Sigma Series pistol models chambered in 9mm, .40 S&W or .357 SIG unless otherwise noted. MGW carries replacement triggers, barrels, sights, springs and other parts for this handgun model. Service your S&W Sigma Series with quality OEM and aftermarket parts/components to ensure a solid performance with each and every shot.