The OCG moving / blowout sale is live! Many items on sale below cost. See details.
Current order processing time: 1 business day

Sig Sauer P320 Compact RX Caliber X-Change Kit w/ Night Sights - 9mm

Sig Sauer P320 Compact RX Caliber X-Change Kit w/ Night Sights - 9mm. Please note that we are experiencing an issue and our site relating to the sale price of this item and coupon code we posted. We have reduced the sale price to the advertised sale price (reflecting the available coupon code) and disabled the coupon code. The price of $509 is our lowest Black Friday sale price.
Ask a question (4)

Availability: Out of stock

Sig Sauer

Fast shipping! We normally ship within 2 business days. More info...

Call us now for more info about our products. 573-859-6044

Sign up for our email newsletter for exclusive offers!


P320® Caliber X-Change™ Kit The modular P320 allows you to select any of several centerfire calibers. Just disassemble the pistol and reassemble it with the X-Change Kit’s barrel/slide assembly, grip module, and magazine.

The ROMEO1 features a molded glass aspheric lens with high performance coatings for superior light transmittance and zero distortion. Manual illumination controls remember your last used settings. Three MOA Red-Dot with multiple intensity settings ensures rapid target engagement under a full range of lighting conditions. The readily available CR1632 battery is top-loading, allowing for quick battery replacement without having to remove the sight from the firearm. Extremely strong and lightweight aircraft grade CNC Magnesium housing ensuring a lifetime of reliable service. Dependable waterproof (IPX-7 rated for complete immersion up to 1 meter) and fog-proof performance.

Specs - More Info
Additional Info
UPC Code 420000000358
Caliber 9mm
Manufacturer Sig Sauer
Sights (detailed) Night Sights + Romeo1
Grips Polymer
Frame Finish Black
Slide Finish Black
Barrel Length (in) 3.9 in
Mag Capacity / Rounds 15rd
Number of Mags 1
Accessory Rail Yes
Customer Reviews (2)
Excellent Upgrade to Red Dot Sights
OCG is a great place to fill your needs. Quick ship, great selection, and competitive pricing. I look forward to my next buy from OCG. Review by Robert (Posted on 12/2/2018)
completes my pistol
I bought a Sig P320 x-five. I am very impressed with the way it shoots and how well balanced it feels in my hand. I did want to buy a Romeo 1 optic for it and when I saw the 320 compact RX for a great price I purchased so that I not only have the optic, but also a new carry gun with the same trigger I'm used to shooting. The x change kit was shipped fast, I received it in two days, delivered to my door and it was factory fresh. Review by Joseph (Posted on 12/2/2018)
Write Your Own Review
You're reviewing: Sig Sauer P320 Compact RX Caliber X-Change Kit w/ Night Sights - 9mm
How do you rate this product? *
  1 star 2 stars 3 stars 4 stars 5 stars

Use spaces to separate tags. Use single quotes (') for phrases.

Product Questions

Product Questions

Would it be possible to switch the 15 round magazine for a 10 round magazine?

Referenced product: CALX-320C-9-BSS-RX

As long as we have 10rd mags available we can. Just give us a call and we'll check on the mags and can write the order by phone. We do charge $10 for the mag swap.

Rate the answer?
What size are the grips? Sm Med Lg?

Referenced Product: CALX-320C-9-BSS-RX

This has a medium size grip.

Rate the answer?
is this the upgraded slide for drop

Referenced product: CALX-320C-9-BSS-RX

This is the upgraded / updated slide.

Rate the answer?
Does the kit that comes with the firearm allow for the change to the .40 instead of the 9mm?
CALX-320C-9-BSS-RX allows you to change the P320 from .40 S&W or .357 Sig to 9mm but this doesn't convert a P320 to .40.
Rate the answer?
You may also be interested in the following product(s)