Description
Factory Sig Sauer Caliber Exchange Kit for MCX rifles and pistols. Easily convert your MCX to 6.75" 300 BLK. Complete with barrel and gas block assembly.
Description
Factory Sig Sauer Caliber Exchange Kit for MCX rifles and pistols. Easily convert your MCX to 6.75" 300 BLK. Complete with barrel and gas block assembly.
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Sign up for promotions and deals
