Home / Brands / Primary Airsoft / Primary Airsoft M870 M4 MAGAZINE ADAPTER Primary Airsoft M870 M4 MAGAZINE ADAPTER£6499 - Or £2166 / month with Klarna * estimate By clicking "Add to Basket" you are confirming you are over 18. Primary Airsoft M870 M4 MAGAZINE ADAPTER quantity Add to Basket Category: Primary Airsoft Product ID: 130999 Description Description Primary Airsoft M870 M4 MAGAZINE ADAPTER Primary Airsoft M870 M4 MAGAZINE ADAPTER