I am currently on vacation and products from my shop will be unavailable for next few weeks. Thank you for your patience and apologize for any inconvenience.
Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. ALL NFA RULES APPLY
NOTICE Gunhippo/Gavco Firearms will be closed for vacation from Saturday October 18, 2025 until November 17, 2025. We will not be receiving or shipping during this period. Dismiss