The Sig Sauer Exchange Kit lets you easily change the configuration on your Sig MCX. This kit can be installed in less than 1 minute using a single torx bit and is offered in a varity of different calibers and barrel lengths. You can easily swap out barrels to best fit the task at hand.

Specifications and Features:
Barrel Length: 16"
Finish/Color: Black
Caliber: 300 Blackout
Type: Upper

Fits:
Sig Sauer MCX