Convert RM380 to 9mm?

[FoundFather]

The Remington RM380, as most of you know, was Remington's version of the Rohrbaugh R380, which as probably everyone knows, was a rechambering of the Rhohrbaugh R9.  This begs the question: is it possible to go the other direction, and "upconvert" a RM380 to 9mm?  Is it safe?  Has anyone done it?  What parts would be needed?

Why bother, you might ask?  The short answer is that there are a whole lot more RM380's around than there are R9's.  The long answer is, well, long......

[ECR]

The conversion would require:


• .380 Barrel
• .380 Slide with .380 Extractor
• .380 Ejector
• .380 Outer Recoil Spring
• .380 Magazine

[tracker]

I think that he means 9mm on the above parts.

[MRC]

It won't work.

Remington advised against 380 +P ammo in theri RM380.  I know a guy who's RM380 had the frame crack with normal ammo.

[ECR]

I think that he means 9mm on the above parts.

How did I miss that conversion!?  LOL

Yes, I meant the other way around. 

Good catch Tracker!  Ha haa . . . . . .  Ah, you guys knew what I meant anyway.

ecr

[FoundFather]

It won't work.

Remington advised against 380 +P ammo in theri RM380.  I know a guy who's RM380 had the frame crack with normal ammo.

Thanks.  I guess they used a cheaper allow than Rohrbaugh did.  Thanks to everyone who indulged me on this.  Probably not the brightest idea to begin with.

[ECR]

I believe the RM380 frame is poured into a mold. We used 7075-T651 aircraft-grade aluminum billets and C.N.C. cut the frames.
They were much stronger than the Remington version, but then again, our R9 was around $1,200 a copy and the RM380 was around $275. . . . . A huge difference!

[FoundFather]

Thanks, Eric!  I completely overlooked who was posting.  Nothing like hearing from the guy whose names is on the gun!

[ECR]

Thanks, Eric!  I completely overlooked who was posting.  Nothing like hearing from the guy whose name is on the gun!

Thank you!