Pre-Ban Interdynamic KG-99 9mm 5” Semi-Auto Pistol Tec-9 Intratec MAC-11
SOLD FOR: $1,200
WOA#: WY240222AS013
Make: Interdynamic / Intratec
Model: KG-99
Serial Number: 18548
Year of Manufacture: 1982-1984
Caliber: 9mm
Action Type: Semi-Automatic, Blowback, Closed Bolt
Markings: The left side of the frame is marked “INTERDYNAMIC / MIAMI FL. / 9MM LUGER / MOD. KG-99 / PATENTS PENDING”, “18548”, “WARNING READ MANUAL BEFORE USE” and the Interdynamic logo at the top of the grip. The right side of the grip also has the logo at the top.
Barrel Length: 5” threaded barrel
Sights / Optics: The front sight is a fixed blade on a staircase ramp. The rear sight is a fixed rectangular notch dovetailed.
Stock Configuration & Condition: The grip is checkered black polymer integral to the polymer frame. There is light handling wear but the checkering remains crips with slightly worn peaks. The grip module is clean and free of any notable marks or scratches outside of a few faint drag lines.
Magazine Quantity & Condition: One Original 50rd magazine in Excellent condition.
Type of Finish: Parkerized
Finish Originality: Original
Bore Condition: The bore is bright and the rifling is sharp. There is no erosion in the bore. In this writer’s opinion the bore rates 10/10.
Overall Condition: This handgun retains about 97% of its metal finish. The balance of the finish shows very little operation wear with only a few light scratches to the upper receiver. The markings are crisp. Overall, this pistol rates in about Excellent condition.
Mechanics: The action functions correctly. We did not fire this handgun. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance requirements.
Box, Paperwork & Accessories: This pistol comes with a total of one magazine and a hard case.
Our Assessment: Dubbed the “Evil Assault Pistol” by the US government, the Interdynamic KG-99 finds its historical origins in the heart of Sweden. The famous George Kellgren, responsible for KelTec, Interdynamic, and Intratec designed the iconic look and configuration of the full auto open bolt MP9. To increase sales the full auto function was removed and then sold to the public in the United States. Thus Interdynamic of America Inc was born along with the KG-9. Unfortunately, the open bolt system was far too easy to convert back to a full auto pistol and the KG-9 became notorious as a common weapon used in crime. To fix the issue, Interdynamic created a closed bolt semi auto version called the KG-99 in 1982. A few years later the government deemed this gun design still far too “violent” with the threaded barrel, removable LCP, pistol grip, and barrel shroud and the ban on the KG-99 and all predecessors was enacted, halting all production. Interdynamic would become Intratec in order to start producing new variants like the Tec-9 to skirt around the bans until new bans were placed until finally Intratec subsided. Claim this wonderful piece of history, possess an aggressive and violent pistol, show off a solid example of an icon of late 80’s TV and movies, and even a few more recent video games. This KG-99 could be your new favorite range toy. This molded polymer pistol is a mixture of stamped and milled steel parts and the simple design makes it easy to repair and modify and the iconic look makes this a go to show piece in your collection. Please see our photos and good luck on your bid! – L.S.
