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Topic - Club Assistance Saginaw Receivers
Posted: May 31 2020 at 12:56am By New2brass
Research Assistance

Saginaw Receivers
3,249,020 thru 3,651,519
5,834,619 thru 6,071,188

We are researching changes in receiver features in an attempt to identify when these changes took place. This also helps to reconstruct some of the shuffling around between the two factories. Much of this information has not been previously requested or reported due to the size limitations of a datasheet.

Your assistance with this research would be very much appreciated.

The answers to the questions that follow and/or pictures can be posted here. Alternatively, the information and pictures can be e-mailed to the following Club e-mail address.

You can also submit a full datasheet. A datasheet can be downloaded and printed HERE 

Please note: if you have previously submitted a datasheet in these serial ranges, we ask that carefully review the information that we are looking for. We will then update the datasheet on file with any new or missing information.

For your convenience: at the bottom of this post is something to help you submit your answers. Simply copy and paste that information into your e-mail or forum post to respond and fill in the information as you read through the questions.

Question #1:

What is the full serial number?

(If you must provide a partial please use two lower case x's for the last two digits. Example: 3250020 would be 32500xx.)

Question #2:

Above the serial number are the letters S and G. What are the characters following each letter if any?

S.G.    S'G'    or simply SG

Question #3:

Which of the following markings are on the receiver ring?

CAL. .30 Ml
                      (period after CAL and another preceding 30, Ml font is Sans Serif)

CAL. 30 M1 (Sans Serif Ml)
                      (period after CAL, no period preceding 30, Ml font is Sans Serif, period following Ml)

CAL. 30 M1 (Serif M1)
                      (period after CAL, no period preceding 30, M1 font is Serif)

     (please send photo if other)
Question #3A:  Is the number 3 Flat or Rounded top?
Question #4:

Rear Tang: is it Wide (left) or Narrow (right)

 Question #5:

At the rear of the left side of the receiver there may be a feature unique to Saginaw we refer to as an "ear" (left & center below).

Does your receiver have a rounded ear (left), squared ear (center), or no ear (right)?

Question #6:

There may or may not be letters and/or numbers on the left side of the receiver. If present what are they and where?

Examples include SI or SG. The SG can be 3/16ths (larger) or 2/16ths (small). There may or may not be an additional letter and/or number near the middle of the left side. Please indicate all that are present
Question #7:

If there any markings on the front of the bottom of the receiver, what are they and where?

If present they are usually on or around the trigger housing lug. Examples below are T (left) and G (right)
Question #8:

What is the name of the barrel manufacturer and the date, if present?

Question #9:

Is the rear slide cut was machined in different ways. Is the end of the cut Round or Square?


Answers (copy and paste into your e-mail or forum post before you read the questions. Fill the answers in as you go.)

Question 1: Serial number -

Question 2: Initials above serial number -

Question 3: Front ring details (use a capitol i for sanserif one) -

Question 4: Rear tang -

Question 5: Rear left receiver detail -

Question 6: Front and middle left detail -

Question 7: Receiver bottom detail -

Question 8: Barrel manufacturer and date -

Question 9: Rear slide cut detail -

Please also see this post for requests of Saginaw numbers in the slingwell:

Edited by New2brass - Feb 26 2023 at 10:33am

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