For sale: HK MP5/SP5 A3 3-position retractable stock
Original brand new German HK A3 3-position retractable stock, part no. 227901. The stock can be fully extended, set for two intermediate slots, and fully collapsed (some call it a 4-position stock). The F stock has an upgraded buffer system and rubber butt pad that is designed to take +P and +P+ rounds as well as standard ammunition. The stock is new, having never been mounted and fired. It comes in the original plastic bag with bubble wrap.
Price: $xxx shipped and insured. I take Venmo, Zelle, USPS money order, and personal check (will ship after check clears). No trades.


Original brand new German HK A3 3-position retractable stock, part no. 227901. The stock can be fully extended, set for two intermediate slots, and fully collapsed (some call it a 4-position stock). The F stock has an upgraded buffer system and rubber butt pad that is designed to take +P and +P+ rounds as well as standard ammunition. The stock is new, having never been mounted and fired. It comes in the original plastic bag with bubble wrap.
Price: $xxx shipped and insured. I take Venmo, Zelle, USPS money order, and personal check (will ship after check clears). No trades.


Last edited: