The SIG Sauer factory MCX caliber conversion kit allows you to change the caliber and barrel length of your SIG Sauer MCX. This Caliber Conversion kit is a genuine factory SIG Sauer part so you can rest assured that the barrel will fit and function in your MCX just as it would had it left the factory that way. ALL NFA RULES APPLY!!!
Specifications and Features:
SIG Sauer Factory MCX Caliber Exchange Conversion Kit CALX-MCX-9B-300B
.300 AAC Blackout
Kit Includes New Barrel Assembly
Note: ALL NFA RULES APPLY!!!
SIG Sauer MCX
Installing this product will subject it to NFA laws and doing so without a license is a felony possession of a Class III firearm. Check your local laws.