Home / Brands / Primary Airsoft / Primary Airsoft M870 M4 MAGAZINE ADAPTER Primary Airsoft M870 M4 MAGAZINE ADAPTER£6499 By clicking "Add to Basket" you are confirming you are over 18. Deposit Option £13.00 per item Pay Deposit Full Amount 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