CMMG 55AFEF2 AR15 Upper Completion Kit

The AR-15 Upper pins and springs parts kit has all the essentials, whether youve had one of those little pieces go missing or its time to stock up on spares, this kit has what you need for mil-spec...

Expertly crafted from aircraft grade aluminum, CMMG Mk4/AR15 upper receiver assemblies come with the ZEROED Polymer Dust Cover pre-installed. Available in different Cerakote finishes, this upper...

Expertly crafted from aircraft grade aluminum, CMMG Mk4/AR15 upper receiver assemblies come with the ZEROED Polymer Dust Cover pre-installed. Available in different Cerakote finishes, this upper...

Expertly crafted from aircraft grade aluminum, CMMG Mk4/AR15 upper receiver assemblies come with the ZEROED Polymer Dust Cover pre-installed. Available in different Cerakote finishes, this upper...

Expertly crafted from aircraft grade aluminum, CMMG Mk4/AR15 upper receiver assemblies come with the ZEROED Polymer Dust Cover pre-installed. Available in different Cerakote finishes, this upper...