50 BMG actions. .50 BMG Maadi-Griffin 80% action (receiver and incomplete bolt) with instruction manual for building the Maadi-Griffin .50 BMG bullpup single-shot rifle. This is not a complete action and as such does not require an FFL to purchase or transfer. You will need a mill or access to one to complete this rifle. I accept Paypal, shipping costs (if not picking up in person) will be calculated on USPS rates to destination.