Turn your MPX K into a 16” competition rifle/PCC with this Sig Sauer OEM barrel and handguard. They were taken off a brand new Gen 3 MPX before a single shot was fired through barrel. The barrel retails for $869 and the handguard retails for $249 on sigsauer.com. Buy them here for less than half and without added sales tax.

Willing to meet in the Farmington area. Cash only.