Author Topic: Convert R9 to 380?  (Read 615 times)

Offline espy2022

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Convert R9 to 380?
« on: August 23, 2021, 11:46:05 PM »
So I saw this on E-Bay, a 380 slide and barrel only:

https://www.ebay.com/itm/255064044497?hash=item3b630073d1:g:WF8AAOSwlV9WSmvB

I assume the recoil spring in the R9 (stock) would be "too strong" for the less powerful 380 round, or am I wrong?  Could one simply replace slide/barrel and have a working 380?  Just thought it would be fun to have a 'conversion kit' should that be all thats needed.  All input welcome.  Thanks guys!

Offline DDGator

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Re: Convert R9 to 380?
« Reply #1 on: August 24, 2021, 08:47:56 AM »

I trust that you will get an answer on this before too long...    ;)

Duane (DDGator)
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Offline MikeInTexas

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Re: Convert R9 to 380?
« Reply #2 on: August 24, 2021, 10:35:46 AM »
IIRC you need a .380 specific magazine as well.



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Offline MRC

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Re: Convert R9 to 380?
« Reply #3 on: August 24, 2021, 11:13:33 AM »
and extractor.

Added later:

I guess it is a 380 slide so a different extractor is not needed, my mistake
.
« Last Edit: August 24, 2021, 12:30:10 PM by MRC »

Offline tracker

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Re: Convert R9 to 380?
« Reply #4 on: August 24, 2021, 11:39:19 AM »
i.e., No!

Offline ECR

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Re: Convert R9 to 380?
« Reply #5 on: August 27, 2021, 04:19:33 PM »
. . . . and a wider ejector.
Makers of the NRA Shooting Illustrated: "Handgun of the Year for 2005" and receiver of an NRA Golden Bullseye Award.

Offline ECR

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Re: Convert R9 to 380?
« Reply #6 on: August 27, 2021, 04:39:50 PM »
Upon looking at the eBay ad for the parts, those were from the sale of our company to Remington Arms in 2014. It seems "someone" acquired this from the stash. Hmmm. Just a thought as Remington and whoever owns these parts now would probably not sell these things. So, moving on. . . . . with the horrible photo of the parts, if you look carefully at the slide it does appear to be one of the completed slide assemblies we sent them at that time to include: the firing pin, firing pin spring, firing pin retainer, extractor, extractor spring and pin. So the only things you need to add is the following items:

1. .380 Ejector and pin (Fatter than the one on the R9)
2. .380 Outer Recoil Spring (or a well used one from the R9 would work)
3. .380 Magazine

Change those parts out and you have the R380 AND an R9.

Now the real disclaimer:  I don't know how this sort of swap works with the states that have the caliber listed on your license or any documents you have to legally own the gun. Being you now have the addition of the capability of using .380 ACP rounds in your 9mm pistol, there may be cause for you to investigate prior to doing such work to your legal R9 Pistol to keep things LEGAL.

. . . . and as the saying goes:   "Just Saying"

So, can it be done relatively easy. . . . . . yes
Do I think it's a good idea. . . . . . . . . . . no

Good Luck with your decision.

Respectfully Yours,

Eric C. Rohrbaugh
Makers of the NRA Shooting Illustrated: "Handgun of the Year for 2005" and receiver of an NRA Golden Bullseye Award.