Available on all domestic orders. Your info is safe with us. Umarex Heckler&Koch HK MP5 A5 AEG Airsoft Rifle. It has a full metal upper receiver and barrel assembly with a tough nylon polymer lower receiver and handguard. It has an MP5 collapsible stock and fires in the velocity range of 375 fps with. 20 gram airsoft BBs and has adjustable hop-up. The threaded muzzle is the HK 3-lug design. It has both semi- and full-auto modes. The HK MP5 A5 AEG Airsoft Rifle is sure to give fans of target hours of backyard shooting fun for years to come. This is the perfect Airsoft for you. Great for a present! Enhanced full metal upper receiver and nylon polymer lower receiver. Fixed front and adjustable rear sights. Umarex Heckler&Koch HK MP5 A5 AEG Airsoft Rifle Specifications. 19.5-25.25 in. If the wrong contact details are provided any losses incurred as a result will be the buyers responsibility. INTERNATIONAL BUYERS – PLEASE NOTE.