Quote Originally Posted by Bolo Badge View Post
1. Were the trigger guard screws used on the M1903 and M1903A3 made to identical dimensions? If not, how do you distinquish between them?

2. Were the M1903 guard screws made by SA, RIA, RA, and SC indentical? Is it possible to distinquish the maker? If so, how?

3. Were any guard screws made by civilian contractors? If so, by whom?

4. At what point in SA/RIA production was the "Parkerized" type finish implemented?

Thanks.
(1) The rear guard screws are the same length. The M'03-A3 front guard screws are 0.1" shorter than M1903 front guard screws.

(2) a. No.
(2) b. To some extent.
(2) c. By the length and slot.

(3) Yes. As I recall, Benrus Watch Co. may have been one of the contractors. But, I would have to consult my records to be sure.

(4) March, 1918, at RIA. December, 1918, at SA.

Hope this helps.

J.B.