Sig P320 .357 sig

Clarification on the 320 and if it can be converted back and fourth from a 45 to a 9mm. I just took a few classes at the Sig Sauer Academy and fell in love with the 320 after firing it at their facility. I had the same questions about converting and I was told directly from the rep at the pro-shop on the Sig Sauer campus that yet it can, with a catch. You must purchase a 320 chambered in 45 first and then you can purchase any of the conversion kits available to convert it (say to 9mm). You can't do this the other way around. I purchased a P320C chambered in 45 and plan to convert it to 9mm (full size). I hope this helps as I am sure that the dealers may not have this information and to get the most bang for your buck (options speaking) purchase the 45 first and then convert.

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Just a followup to my original post.

I took my P320C .45, P320F 40 S&W and P320CP 9mm to the range yesterday. I installed the .45 FCU in both the F and CP pistols and fired 50+ rounds through each. The .45 FCU fed, fired and ejected the .40 S&W and 9mm ammo without any problems. It appears I've answered my own question. the .45 FCU is downward compatible with the smaller calibers.

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Quick answer I got from Sig is yes! I live just outside of Exeter, NH and just took 3 classes at the Sig Sauer Academy. I fell in love with the 320 while shooting it at their range and asked this exact question at the pro-shop on the Sig Sauer Campus. I was told that if I purchased the 320 chambered in 45 that I could convert it to a 9mm (or 40, Sig 357) with the conversion kits. I was told by the rep that this is the only way you can have it both ways as you can't convert the other way around. I ordered a P320C chambered in 45 as they were out of stock at the pro-shop and they stated they would call me once it was manufactured and shipped from the factory. I will then purchase the 9mm (full size) conversion kit. If there is continued interest I can update this post after receiving and attempting the conversion. I am interested in seeing if it is as reliable converted into 9mm as the one that I shot that was originally set up in this configuration. Hope this helps.

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gunsmoker said:

I'm not seeing an $15/ 50 round boxes of ammo in my quick Google search. It's more like $20/ box.

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Mrs_Esterhouse said:

$15 per box of 50 rounds.
https://www.ammograb.com/357-sig/

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Malum Prohibitum said:

Wait, isn't the .45 a part of this modular gun lineup? If so, then the COAL issue is not the issue.

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Malum Prohibitum said:

I have a 9mm version. It is the gun one of my sons uses for handgun classes. It is full size.

I would buy a 10mm version in a heartbeat.

I like this gun. I like the trigger. I like the accuracy. I like the ergonomics.

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papadaca said:

You really need 2 get the p320 in 357 sig. You can't go wrong... I converted my 40 cal compact with the 357 Sig Barrel from a old 2 50. I didn't really like the 9 millimeter per se but I love 357 Sig version

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RedDawnTheMusical said:

Eh. Like the .40, 357 sig is a capable round, but appears to be a solution to a problem that doesn't exist. It offers negligible performance improvement over 9mm, costs more, has a snappier recoil to manage, and would be harder to come by in SHTF moments.

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Mrs_Esterhouse said:

Sooo? How is it too expensive?

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