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Sig Sauer MCX 14.5" 5.56mm Caliber Exchange Kit


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Sig Sauer MCX 14.5" 5.56mm Caliber Exchange Kit


This is a brand new Sig Sauer MCX Conversion kit to convert your MCX to 5.56mm NATO with an 14.5" barrel. This kit will ONLY work with the Virtus series or an MCX that has "-TAP" in the part number UNLESS you purchase and install the updated tapered lug bolt on your older MCX.  Bolts are not included.  APP MCX Conversion kits have chrome-lined barrels which differentiate themselves from the commercial variants.

All NFA rules apply.

Additional Information

UPC Code 798681579716
Caliber .223 / 5.56
Manufacturer Sig Sauer
Trigger Pull SA No
Trigger Pull (DA) No
Overall Length No
Overall Height No
Overall Width No
Sights (detailed) No
Sight Radius No
Weight Empty No
Grips No
Frame Finish No
Frame Material No
Slide Finish No
Stock Material No
Barrel Length (in) 14.5 in
Rifling No
Number of Grooves No
Mag Capacity / Rounds No
Number of Mags No
Sound Reduction No
Accessory Rail Not Applicable
Features No
Safety (detailed) No
Competition Approval No
Magazine Well No
Additional Info No
Bullet Type No
FFL Requirements No
Warranty Warranty provided by Sig Sauer. Warranty information is available for Sig Sauer products at

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