Heckler & Koch MP5A4 Submachinegun
MP5 Submachineguns employ the same delayed blowback operated roller-locked bolt system found in the famous HK G3 Automatic Rifle. All the elements of HK excellence; reliability, ease of handling, simple maintenance, and safety are highlighted on the MP5. Firing from the closed-bolt position during all modes of fire makes MP5 Submachineguns extremely accurate and controllable.

Heckler & Koch MP5KA4Submachinegun
The MP5K, a Maschinenpistole in the purest sense of the word. 'K' in German stands for Kurz, or 'short.' Introduced in 1976, the MP5K was designed at the request of HK South American sales rep, who saw a market for dignitary protection and increased firepower in a small package. The K saw relatively insignificant sales compared to the full size MP5. That is until the advent of a shoulder stock addition and a new variant name called PDW in 1991. PDW stands for Personal Defense Weapon. The PDW shoulder stock is manufactured for HK by Choate, and the stocks are applied to the K models in the United States. With the new shoulder stock, sales of the PDW soared, mainly due to the new controllability of the MP5K. It was now on a par with the full size MP5 in controllability.
