HECKLER & KOCH MP5SD FOR SALE.

The principle feature of the HECKLER & KOCH MP5SD series is its large aluminum suppressor assembly added to the front of the weapon which is coupled to base supersonic 9mm cartridges. Within this assembly is a shortened barrel that has been perforated with some 30 openings to allow for the controlled escaping of gasses as the weapon cycles through its action. The suppressor therefore shrouds the perforated barrel assembly and is designed with a two-stage, two-chamber process. The initial chamber (the one closest to the receiver) surrounds the barrel in an expected fashion and it is this chamber that initially collects the escaping propellant gasses, controlling the effects of the escaping bullet by reducing its pressure and retarding its acceleration. This Is The Fullsize MP5 That Has The Removable, Built In Suppressor. A selection of optional trigger groups allow for single fire only, full automatic, 2-round, and 3-round burst options. The weapon’s unique modular design and a variety of optional buttstocks, forearms, sight mounts, and other accessories gives the MP5 extraordinary flexibility to meet most any mission requirement.