It comes in two variants: the MP5 .22 LR Rifle, which resembles an MP5SD3 with a 16.1-inch barrel hidden by a faux "integral suppressor" barrel shroud; and the MP5 .22 LR Pistol, which resembles an MP5A1 or MP5A3 with an 8.5-inch barrel.

The MP5SD 9x19mm integrally suppressed submachine gun was developed in response to the special requirements of special operations forces. The MP5SD has an integral silencer which still has the same length and general shape as an unsilenced submachine gun.

Where other submachine guns have to use special subsonic ammunition for silenced use, the MP5 SD fires supersonic ammunition in the subsonic range (<340 m/s). It is also one of the most precise silenced submachine guns in its class.

The Heckler & Koch HK MP5-SD 9mm integrally suppressed submachine gun was developed in response to the special requirements of special operations forces. The MP5SD has an integral silencer which still has the same length and general shape as an unsilenced submachine gun.

MP5SD3: A modification of the MP5 with a built-in suppressor and a retractable metal stock. Heckler & Koch produces several versions of the MP5 with an integrated suppressor. In 1974, the MP5SD was introduced, a model with an integrated suppressor.

The MP5SD is the full-time suppressed version of the MP5 submachine gun. This version uses an integral aluminum or optional wet-technology stainless steel sound suppressor. Due to its …

Dec 21, 2020 · Like the MP5 before it, the MP5SD series fired the widely-accepted 9x19mm Parabellum pistol cartridge from a 15- or 30-round detachable box magazine. The principle feature of the MPSD series is its large aluminum suppressor assembly added to the front of the weapon which is coupled to base supersonic 9mm cartridges.

Larger stainless steel muffler (from Knight's Armament Company) and a tritium illuminated front sight. This version (foldable stock - MP5SD-N1 and fixed stock - MP5SD-N2) is used by SEALs and SAS personnel. MP5SD2 - Fixed Inventory; Semi/Auto Trigger Group. MP5SD3 - Collapsible stock; semi-/auto-fire trigger group.

The MP5-SD3 is a type of variant of the Heckler & Koch MP5, one of many in a line of the MP5 integrated suppressor variants. The MP5-SD3 was designed for special operations and stealth-based missions in mind, while keeping a sufficient amount of power when faced with overwhelming odds.

Right side view of MP5SD3 with early SEF trigger group that has German markings and is not ambidextrous.