1911Forum banner

45 Slide on 9mm frame

1907 3
I have a new Series 70 .45 slide. It is a bare slide with no internals. Is it possible to put a 9mm firing pin and extractor in this slide and use in on a 9mm lower unit? Will the ejector cut on the slide fit the 9mm ejector? Thanks in advance for your help.
1 - 4 of 4 Posts

· Registered
Joined
·
23,953 Posts
I don't think it will work.
What barrel were you going to use, 9mm?
The .45 slide's ejector cut will NOT line up with the 9mm ejector.
A 9mm firing pin is too small for the hole in the .45 slide and would let primers crater. A 9mm extractor will not reach the rim of a 9mm case in the .45 breechface.
 

· Registered
Joined
·
2,524 Posts
Whit

You might be able to convert your 9mm frame to shoot 45's using your 45 slide, assuming the 45 magazines fit in the frame properly. But, as JamesP mentioned you can not use a 45 slide to shoot 9mm.

The reason is the width of the breech face. The 45 breech face is wider than the 9mm, so the extractor will be set out farther than needed for a 9mm. So if you attempted to feed a 9mm into a 45 slide it probably will not extract since the extractor will probably not be in contact with the case. In fact in a 1911 the extractor is used to control feeding, so if you tried to feed 9mm with a 45 slide you might just push the rounds out of the pistol and not into the barrel at all. This may be a bit of a stretch, but strange things can happen when you are mis-matching parts.


------------------
Str8_Shot

The best handgun for self defense, is the one you have with you.
 
1 - 4 of 4 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top