Stemple's slow-fire 76/45 (variable 400-575 rpm)
.45 ACP only
M16 collapsible stock
M16 pistol grip
Takes Grease Gun Mags

Optional Suppressor w/ Barrel
Stemple 76/45
The Stemple 76/45 is best described as a .45 cal. version of the 9mm Swedish K (Carl Gustav). The Stemple 76/45 was originally developed and produced by John Stemple of Ohio. This design also shares many characteristics of the Smith & Wesson 76 9mm, which is more or less a copy of the Swedish K. The Swedish K was an updated replacement for the aging Suomi M-1931. In fact, many of the parts from the Swedish K are compatible w/ the Suomi M-31. Similarly, the Stemple 76/45 shares a limited compatibility w/ Suomi M-31 parts. Namely, the bolt diameters as well as the feed and ejection locations are the same for the Stemple 76/45, S&W 76, Swedish K, and Suomi M-31.
Swedish K
Suomi M-31
STG 76W is featured on the front cover of Shotgun News READ HERE

Stemple has produced the 76/45 in numerous configurations. The main differences are in the 3 parts that are typically welded to the receiver: rear grip / stock mount, mag housing, and trunion. Given that these parts are permanently attached to the receiver, it is difficult to make accessories that are compatible with all of Stemple's guns. Pictured above is one of the newer versions of the 76/45 that uses a compensated barrel, telescoping stock, M-16 grip, and a 'pull-button' magazine release.
Caliber conversions for the 76/45 have been available in .22 and 9mm. The 9mm conversion uses either Sten mags or Suomi mags and drums depending on the magazine well that was welded to the receiver. Stemple's latest innovation on the 76/45 is an ultra-slow firing 'match-grade' version with a refined MP-40-style trigger group, AR plastic stock, and Picatinny rail base.
Interesting Suomi Resources
The Suomi as a Sniper's Weapon?: http://www.mosinnagant.net/finland/simohayha.asp
http://www.winterwar.com/Weapons/FinSmallArms/FinAutomatics.htm
http://world.guns.ru/smg/smg52-e.htm
http://www.jaegerplatoon.net/MACHINEPISTOLS1.htm
http://guns.connect.fi/gow/suomi1.html
http://guns.connect.fi/gow/suomi2.html
Factoid: Simo Häyhä (6th Company of JR 34, Finnish Army) was credited with over 500 kills in his service during the Winter War with his service cut short as he was wounded on 3-6-40 by a Soviet sniper. He was an expert with the Suomi K31 SMG and a large number of the Soviets that he felled were from his K31. The total time that Simo Häyhä served in the Winter War was 100 days with about 500 kills credited to him. His record is truly remarkable and is long since remembered in the nation of Finland.
Source: http://www.kevos4.com/Simo_Hayha.htm
The Original Concept for the Heavy SMG
The ZK-383 is a heavy submachine gun of Czech origin used during World War II. Czechoslovakians used it, but only as a reserve. It was also issued to the Bulgarian military, as well as some German troops. It was in use after World War II by the Balkan states up until the 1960s.
It is sometimes considered to be a light automatic rifle, but the 9mm Parabellum ammunition is typical of a submachine gun. It stores the ammunition in a 30-round magazine. In addition, the gun has a bipod, a bayonet lug, and an extra long range sight, which is unusual for submachine guns.
Source: http://en.wikipedia.org/wiki/ZK-383
ZK-383