[LOWRIDER60]

Would a Mossberg m4a scope and #8 mount be correct for this rifle?

 

[M1Crazy]

The scope and mount info. "4x, scope made 1938-1965. It has 3/4" tube 15.75" long. External adjustments for windage and elevation. Marketed with No. 8 mount."
The rifle info. "Model 44US(a) adjustable trigger pull added, made 1944-1946"
The above info is from damguys website I take it you mean a 44US(a) model.
Check out the first link for info.
http://home.epix.net/~damguy/
Try this link for forums http://www.rimfirecentral.com/forums...splay.php?f=51
HTH
Barry In MO.

 

[HoosierDaddy In Memoriam]

It will only work if the rifle is drilled and tapped to accept the mount. USGI rifles were not as a rule set up that way. A few did show up in a particular production run but the vast majority were not D&T. I have a couple that were and used exactly the same set up you are asking about.
http://smg.photobucket.com/albums/0603/HoosierDaddy/Mossbergs/