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Sig Sauer MPX 4.5" 9mm Conversion Kit - Gen 2

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Quick Overview

Sig Sauer MPX 4.5" 9mm Conversion Kit - Gen 2
Sig Sauer MPX 4.5" 9mm Conversion Kit - Gen 2

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This kit is everything you need to change the barre length on your Second Generation MPX to a 9mm 4" barrel configuration. If your MPX shipped with magazines with tan/FDE followers this is the correct model for you. If your MPX shipped with a magazine with a black follower this will not work on your gun.

Additional Information

UPC Code 798681555062
Caliber 9mm
Manufacturer Sig Sauer
Barrel Length (in) 4.5 in
Accessory Rail Not Applicable
Warranty Warranty provided by Sig Sauer. Warranty information is available for Sig Sauer products at

Product Questions

Product Questions

Will this barrel fit in a sigs new mpx copperhead please let me know thanks

Referenced product: CALX-MPX-4B-9-G2

This should fit and work in the MPX Copperhead.

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Customer Reviews has the best prices on this quality item Review by Jeff
I bought this to put into my Copperhead. Amazing Sig quality on this OEM barrel. It went in easily and shoots accurately. has the best prices and the best service. I will be a longtime customer! (Posted on 2/17/2020)

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