A surprising variety of stocks have been manufactured for the UZI - many more than the casual observer might guess since they typically get exposed to just the full size SMG with the metal folding stock. The UZI was originally fitted with a quick detach wooden stock. The metal folding stock followed later and different versions of a metal folding stock were created for the Mini UZI and Micro UZI.
The following table shows a variety of IMI and after market stocks. The numbering of these stocks is in no way an official numbering recognized by IMI or anyone else. It's merely a reference so they can differentiated from each other in the discussion presented here. Also, the numbering of these stocks does not indicate the order in which they were manufactured, although the order presented is generally older to newer.
|The type 1 stock is a quick detach stock and has a flat butt end instead of being shaped to match the metal butt plate. A groove around the butt end of the stock allows a normal butt plate to fit on the stock. At least some of these stocks (maybe all of them) have two holes in the butt end of the stock to hold a cleaning rod and oil bottle. A hinged butt plate allows access to the holes in the stock. An "I" shaped bracket is used to attach the stock to the gun. The comb of the stock was straight across.|
|IMI produced a long version of the quick detach stock. The stock was approximately 2" longer than the original stock and was made for a contract with the Dutch government.|
|The type 3 quick detach stock was very similar to the type 1 stock except it was lengthened by about an inch and the butt end of the stock was extended to completely fill the metal butt plate. It still had a straight comb but did not have holes in the butt for cleaning supplies.|
|The type 4 quick detach stock is the variant that most people run into today. It's identical to the type 3 stock except that the comb has a large dip in it. IMI also made permanent mount versions of the type 4 stock, primarily for use on semi automatic UZIs.|
|The type 5 stock is an all metal variant that was developed in the 1960's. It bolts on to the rear of the UZI receiver and does not need the metal stock bracket used on the wood stocks. The stock folds in two places and tucks up neatly under the receiver when not in use. The type 5 stock results in about a 1" longer length of pull than a type 4 stock, and it has a lower drop to it.|
|The type 6 stock is a wire folding stock developed for the Mini UZI. The hinge is welded to the rear of the receiver and a spring loaded pin holds on the one piece wire stock. There is no release to fold the stock. It operates by putting (considerable) sideways pressure on the stock. It gives a length of pull about 1" LONGER than the type 5 metal stock used on the full size UZI.|
|Choate made an aftermarket stock for the UZI. It's plastic with a rubber butt pad. The metal bracket at the front of the stock attaches to the UZI receiver in the same way that an IMI non-detachable stock attaches and thus is permissible to use on semi automatic UZIs.|
|IMI produces a polymer stock for the full size UZI. It's the same shape as a type 4 stock but made of plastic instead of wood. It's available with permanent or quick detach mounts.|
While Action Arms was in business, they imported IMI type 4 stocks and packaged them for sale in the United States. They were available in both quick detach (for full autos) and permanent mount (for semi-autos).
UZI Talk member MG Stocks.com made some beautiful aftermarket stocks
for the UZI. In addition to the standard model, they are available in fancy
walnut and many types of exotic wood. The stock are 2" longer than a standard
IMI stock, just like the long stocks that IMI made for a special Dutch contract
back in the 1960's. They're available in quick detach or permanent mount (for
semi automatics) and since they are US made they count towards US parts count.
Vector Arms is also
selling a US made aftermarket stocks. They are available in walnut, maple and
two different laminated styles. The non-laminated stocks have an UZI logo on the
size of the stock. They're available in quick detach and permanent mount.
|The butt end of two IMI stocks. The type 1 stock has a large hole for an oiler and a small hole for a two piece cleaning rod. It has numbers stamped on the end in a couple of different places. The end of the stock is cut flat and has a ridge around the outside where the metal butt plate fits. The type 3 stock is not flat on the end. It sticks out to the contour of the metal butt plate. It also has identifying marks stamped in it.||The front of a wood stock can be found in three different configurations. Permanently attached stocks (normally a type 4 or 7 stock) do not need the cutout for the quick detach lever. The quick detach stocks (types 1-4) may or may not have a tension button. This spring loaded button puts tension between the receiver and the stock to reduce any wobble in the stock. All three type are attached to the stock bracket by two bolts and one wood screw.|
Butt Plates: Wooden UZI stocks have a metal butt plate. Any of the butt plates will fit on any of the the type 1-4 & 7 stocks. The butt plate has a sling swivel permanently attached to the left side. The hinged butt plate is used with the type 1 stock to allow access to the storage holes in the butt of the stock. Different serration patterns can be found. They might signify different manufacturing timeframes, or they might indicate different manufacturers.
Stock Brackets: The "I" shaped stock bracket is found on the type 1 stocks. The edges of the stock have raised wood that align with the narrowed part of the bracket. Quick detach brackets may or may not have a large hole for the tension button.
Attaching A Permanent Stock
(Action Arms instructions for attaching a stock to a semi-auto UZI)
Attaching the bracket to a quick detach stock: Two machine screws pass through the bracket and screw into nuts on the underside of the stock. The optional tension button sits between the stock and the bracket. The button sticks through the bracket and presses against the receiver to keep the stock from wobbling. The quick detach lever sticks through the hole in the bottom of the stock. The stock is released by pushing the lever forward.
Type 1 stock: The hinged butt plate attached to a type 1 stock gives an easily accessible storage area for an oiler and a two piece cleaning rod.
Mini UZI hinge.
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