Irwin-pedersen

[rokwell]

Does anyone know the meaning of the M2 marking on these IP receivers
?

[tenOC]

Also regarding Charlie's question about SG receiver supply: I've never had an SG, so I can't compare this issue, so if someone knows, does the SG have this 'interruption' or bump up at the rear sight like the IP? I call it an interruption because if you drag a line from front to back, the bump up breaks the line.

[USGI]

Here's a picture of an S'G' posted by Hercules Powder back in May. - Bob

[painter777]

does the SG have this 'interruption' or bump up at the rear sight like the IP?

tenOC,
I have SG 3,465,xxx and S'G' 1,823,xxx that both have this bump you've noted.
I also see that the SG measures 9/16" in length from the rear to the slide cut out, having a C cut notch.
The S'G' measures 1/4", having a squared off/ramped cut. Like the IP's shown in this thread.

BTW,
I just pulled these two from storage..... So they are greasy.

FWIW,
Charlie-painter777

SG 3,465,xxx:








S'G' 1,823,xxx:

[tenOC]

Thanks, guys, but I'm talking about the S.G., like Charlie's. How are others milled? More or less like his?

[contact148]

late entry here

IP all orig serial 32162xx

barrel underwood 3-43

NO import marks never thru a rebuild (still has push safty and rear flip sight) all parts are IP except the S'G' hammer

this one came out of SE asia somewhere about 10-15 years ago