Heckler & Koch SMG II | Gun Wiki | Fandom
The Heckler & Koch SMG II was a prototype submachine gun intended as a successor to the MP5. It came with a selector which would change the velocity of the rounds fired, so that a suppressor attached to it could effectively muffle the sound of the otherwise supersonic 9x19 parabellum round. [1] Heckler & Koch SMG I Heckler & Koch SMG II H&K's …
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1. Globe valve: ( Types of valves ) Globe valve: It operates by reciprocating action of disc or plug. The disc or plug moves to or away from the seat thereby stopping the fluid flow or allowing the fluid to flow. The disc or plug seats over the valve seat. The valve seat can be removable. Pr...
H&K's Experimental SMG and SMG II for the US Navy
H&K built two models of experimental guns in the 1980s to meet this request, creatively named the SMG and SMG II. Both guns were hammer fired, closed bolt designs that used simple blowback actions. They had collapsing stocks similar to what would later be used on the MP7, and vertical front grips. The early pattern had a remarkably complex …
Heckler & Koch Sub Machine Guns | Heckler & Koch Law Enforcement …
With the UMP, Heckler & Koch has developed a versatile submachine gun the likes of which did not exist before on the world market. A weapon that can cover three calibres simply by exchanging a few assemblies: 9 mm x 19, .40 S&W and .45 ACP. The UMP combines top-rate performance with simple handling and high safety standards.
Frontiers | The submandibular and sublingual glands …
IntroductionOral microbial homeostasis is a key factor affecting oral health, and saliva plays a significant role in maintaining oral microbial homeostasis. The submandibular gland (SMG) and sublingual gland (SLG) together produce the most saliva at rest. Organic ingredients, including antimicrobial proteins, are rich and distinctive and depend on the type of acinar …
Submachine gun | History, Design & Use | Britannica
The Thompson submachine gun ( q.v. ), or tommy gun, an important American type, was patented in 1920. After 1925 numerous evolutionary models appeared: the Bergmann Model 34 and the Schmeisser 28 II in Germany, Italy's Beretta Model 38, and the Hungarian Model 43. During and after World War II, many new types and models …