Anyone serve with IDF or Police using the M1 Carbine ?

[painter777]

If anyone has served in Israel using the M1 Carbine,
We have a few questions for you.
We often see M1 carbines that served in Israel with the number 50 stamped on the stock near the Recoil Plate or the side near the rear sight. Most often we find the Carbines serial number stamped on the left side of the stock. And sometimes a number stamped on the bottom of the pistol grip.

Here are pictures of a example of a Israeli used Carbine with these markings:

50...... Also often found stamped 50 near the Recoil plate, and sometimes in both areas:





Attachment 116870

Israeli style stock SN# marking:



Pistol Grip: Small Circled Number Stamp, Most we've found have a Circled single digit stamped on the bottom often oriented differently.
Sometimes we see Non Circled multiple Larger Digits on the bottom grip, But these aren't as common on the Israeli returns.

Small Single Circled Digit Example:

Attachment 116873

Attachment 116874

What does the number 50 stand for ?
We've 'Speculated' the stamped number 50 near the rear sight or recoil plate 'Might' stand for:
Sighted in for 50 Meters.... because of Highly populated Urban Conditions.

Recently a few members ran across some Surplus IMI .30 Carbine 110gr JSP IDF/Police Ammo being offered for sale. See attached a picture of the boxed label.
Attachment 116875

Another member found this Spec Data Sheet on this IMI Law Enforcement Carbine load.
Noted in the Description it says "This round engages its target accurately up to a distance of 50 meters, providing excellent stopping power for first target hit but with significantly reduced secondary target impact. Ideally suited for use in crowded environments where secondary casualties must be prevented.... " .. Etc.
Attached below:

Attachment 116876

IF Anyone has served or Experience with the IDF, Police Forces or Security, etc and knows anything about the Stamped 50 marking your help appreciated.

Even before seeing the IMI Ammo Data, I felt the 50 stood for the Carbine being Sighted in for 50 Meters. After reading the IMI data sheet I feel that much more confident that's what it stands for. The Stocks stamped 50, 2x ? Maybe sighted in again after a front sight change.
If anyone can help... Please do. If you have a connection in Israel you can ask, Please Do.

Post here or feel free to PM me or Email me.

Thank You,

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