SEMI AUTO MINI UZI PARTS

This is a breakdown of all the parts that go into one complete semi automatic Mini Uzi carbine. Notes about each part and differences versus different versions of the Uzi will be noted.

The numbers below correspond to the parts on the Mini Uzi carbine parts diagram available on uzitalk.com here.

All items marked with a "*" indicate that this is a Mini Uzi only part and not interchangable with the full size Uzi.


*1 - Barrel
The semi auto barrel is 19" from the factory. A ruling made it legal to reduce this size to 16" which you might see with some Vector Arms produced Minis. The back end is smaller for fitting inside the restriction ring of the semi autos.
Full Auto / SBR / Pistol. This has two angled ports on the front for compensation. The back end is once again turned down for use in a semi auto gun with the restriction ring but factory SMG barrels do not have this and in place, have a thicker band halfway down the barrel for a second support so the barrel doesnt move. See here for differences (photo credit Amphibian / C3junkie).

2 - Nut, Barrel retaining
The threading on these are M26x1.5. The Micro Uzi and Uzi Pistol are 
M24x1.

3 - Catch, Barrel Retaining


4 - Spring, Barrel Catch


5 - Front Sight
The Mini Uzis all used Model B sights, except for the Vector Arms guns made from cut down Group Industries Receivers which use Model A sights.

6 - Detent, Front Sight


7 - Spring, Detent Front Sight


*8 - Receiver
Original IMI Mini Uzis had receivers that are instantly identifiable by the secondary "ribs" on the back end. The left side has one rib above the serial number area and the other side has two. Guns made from cut down full size receivers lack this or else can easily be spotted as a re-weld because the rib is so hard to get perfect. The Mini had a variety of different stampings on the back to identify them. All Action Arms guns have a stamping on the underside indicating that they are AA guns and their place of import and origin (PIC). The Action Arms Mini Carbine has an MC before the serial to indicate "Mini Carbine" (PIC). Mini Uzi carbine serial numbers srarted at 1001. The Mini Uzi Pistols that Vector Arms made were built on carbine receivers but restamped to read Mini Uzi Pistol. They still retain the MC prefix (PIC). The rare "First Responder" carbine has a lot more stamping on it (PIC).As far as SMGs go the original non-export IMI Mini was marked simply "Mini Uzi 9mm" without any prefix in front of the serial (PIC). The standard open-bolt Mini Uzi has an MU prefix (PIC). The closed-bolt Mini had an MU-CB preifx (PIC). Closed-bolt Minis were also made from semi carbines and can be identified by stmaped out portions where the "carbine" and MC prefix used to be (PIC).

*9 - Swivel, Sling


*10 - Handguard, Left


11 - Screw, Handguard
A few aftermarket companies use Allen bolts with an ugly bright gold/brass color to them so be careful.
Thread size 5-40.

*12 - Handguard, Right


13 - Nut, Handguard Bolt
A few aftermarket companies use Allen bolts with an ugly bright gold/brass color to them so be careful.

14 - Catch, Cover


15 - Spring, Catch Cover


16 - Rear Sight
The Mini Uzis all used Model B sights, except for the Vector Arms guns made from cut down Group Industries Receivers which use Model A sights.

17 - Spring, Washer, Rear Sight


18 - Pin, Drum Windage


19 - Drum, Windage


20 - Spring, Drum Windage


21 - Axis, Rear Sight


22 - Washer, Lock


*23 - Spring, Stock


*24 - Pin, Connecting


*25 - Folding Stock Assembly
IMI produced two variants of the folding stock. The newer design as a more flat back that meets up with the rear of the receiver better. See pic here. The Mini Uzi stock is sometimes used on the Micro Uzi but I have only seen one instance of the Micro Uzi stock being used on a Mini and it looked rediculous. 

26 - Screw, Cocking Knob


27 - Knob, Cocking


*28 - Plate, Slot Cover
The semi auto has modification warnings printed on it while the SMG version does not. You may see closed bolt SMGs with the markings, but this is due to the fact that closed bolts were often converted from previous semi auto guns.

*29 - Cover, Receiver
The SMG version has teeth and a ratcheting system to hold the bolt open upon firing the last round. These can be used on semi auto guns by simply removing the spring and ratchet piece. Once again, you may see closed bolt SMGs with the non-ratcheting semi auto top cover, but this is due to the fact that closed bolts were often converted from previous semi auto guns. Top covers that were made from cut down full size covers are instantly identifiable by the recess over the ejection port. The real Mini top covers are flat all the way from the front to back. See example here.


30 - Spring, Lug Cocking


31 - Lug, Cocking


*32 - Bolt
The semi auto Mini Uzi bolt does not feature the "feet" of a full auto bolt. The semi auto bolt and the closed SMG bolt are very similar but their differences can be seen in these pics: 1/2. Please refer to the various sections on uzitalk.com, "Bolts", "Full Auto Conversions" and "Full Auto Conversions: Mini Uzi",  for more bolt specific information. The Micro Uzi / Uzi Pistol bolt can be used in the Mini Uzi but please notice the releif cut in the top in the Micro / Pistol bolt seen here.

33 - Pin, Extractor


34 - Spring, Blocking Latch


*35 - Blocking Latch
The Mini Uzi features a slightly modified design of the regular Uzi's blocking latch. The Mini is slightly smaller. The difference can be seen here.

36 - Extractor
The semi extractor differs from the SMG extractor in that the semi is missing half of the "claw" while the SMG version features a full lip to it. The SMG version can be used in semi guns for a better extraction without modifications. The differences are evident in this pic here (
photo credit Amphibian / C3junkie).

*37 - Striker
The open bolt Mini Uzi SMG has a bolt featuring a fixed firing pin.

*38 - Striker, Guide
 
The open bolt Mini Uzi SMG does not utilize a striker and essentially uses just a spring rod as a recoil mechanism. See picture here (photo credit uzitalk.com). For a pdf of dimensions of this striker, click here.

*39 - Seat, Striker Spring


*40 - Retaining Ring


*41 - Return Spring Assembly
The open bolt Mini Uzi SMG does not utilize a striker and essentially uses just a spring rod as a recoil mechanism. See picture here (photo credit uzitalk.com).

42 - Body, Pistol Grip
The semi aut Mini Uzi came from the factory with the markings "FS" for "Fire" and "Safe". SMGs would have come with the markings "ARS" which stands for "Automatic, Repetition, Safe". "AFS" marked lowers are lowers that were once semi lowers that had an "A" marked in. "RS" lowers would be lowers made from "ARS" lowers to be semi and had the "A" welded over. Hebrew marked lowers can be found but they most likely came from full size Uzi parts kits. The first group (safe position) contains two letters -"NT". It stands for the word Natzur. (Safe) The second group (semi position) contains one letter - "B". It stands for the word Bodedet. (Single). The third group (full auto) contains one letter - "A". It stands for Atomatit. (Automatic). "DES" marked lowers are lowers that came off of surplus German full size guns and are not original to the Mini. Vector uses these lowers with their Minis now that they have run out of original and Hebrew marked lowers. The "D" stands for "Dauerfeuer which means "sustained fire", "E" stands for Einzelfuer, which means single fire (semi auto), and "S" stands for Sicher, which means "safe".

43 - Cover, Pistol Grip, Right


44 - Safety Grip Assembly


45 - Spring, Safety Grip


46 - Pin, Catch, Magazine


47 - Spring, Catch, Magazine


48 - Catch, Magazine


49 - Pin, Pistol Grip
The semi auto pin is 9mm diameter and the SMG is 8mm. The pin for the full size and Mini Uzi  is 1 3/4" long, while the Uzi Pistol is 1 5/8" long.

50 - Cover, Pistol Grip, Left


51 - Screw, Pistol Grip Cover
Thread size 5-40.

52 - Button, Fire Selector


53 - Fire Selector


54 - Spring, Fire Selector


*55 - Sear
The semi auto Mini Uzi sear is unique in that it only has one sear pad. The factory marked these with "MC" for "Mini Carbine". A full size carbine sear can be modified to work in the Mini by grinding one of the sear pads flat. See these pics for the differences: 1/2/3.

56 - Spring, Sear


57 - Stop, Disconnector


58 - Trigger Assembly


59 - Spring, Trigger


60 - Pin, Sear


61 - Pin, Trigger