Sig Caliber X-Change Kit, P320 Full, 9mm, RX, Black

Pictures may not exactly represent this item. Please read the description before purchasing.
(1 review) Write a Review
(You save $50.61 )
This item is no longer available
Manufacturer Number:
Unit of Measure:
Allows you to select any of several centerfire calibers. Just disassemble your pistol and reassemble it with the X-Change Kit’s Nitron finished stainless steel slide assembly (includes barrel), grip module, and magazine. Features contrast sights and Romeo I mini reflex sight with 3MOA red dot reticle. Comes in a hard carry case.
  • 4
    SIG P320F RX Cal-X kit

    Posted by Dave L. on Mar 18th 2019

    Overall, I'm very happy with the kit. Having to sign for it from FedEx can be a pain if they come by when you aren't home! Luckily they caught me on the second try. The description was accurate in that it says that it comes with high contrast sights, but the SIG box that it comes in has on it in two places that it comes with SIGlite Nite Sights. I have a feeling that the reason the cost is so much better than from the SIG store is because they must "dumb down" some kits a little, whether it's a SIG practice or a special order from a vendor. Also, the whole pistols sold with the Romeo1 are listed as being zeroed from the factory, but the sight in my kit certainly was not. Not even close. Luckily, it's super easy to adjust it and on a positive note, the irons were pretty much spot on. My first experience with a similar pistol was a recent rental at an indoor range but that was an X-Carry RX which I shot better than any other pistol I've ever fired. I think that I may get a full size X grip module with the high ride grip and see if I can duplicate that effort with this rig. I shoot OK with this, but that X-Carry was much better. I suppose that the straight trigger on the X-Carry may have helped as well. Great price, and the fact that they are in stock (at least in Full size) is a bonus. Well worth the money in my opinion.

Estimated shipping times are posted on the product information page under the title "Ships On Or Before:" please note that all lead-times are estimates.  For items in our warehouse, we usually ship within 3 business days.  For items only available at distribution or other sources, the ship time may be up to 10 business days.  For items only available at the manufacturer, the lead-time may be a few weeks or longer-- depending on availability.

Please also note that some items are unique, hard to obtain, or one-of-a-kind, so Impact reserves the right to cancel your order should an item not be available to ship.

We will not charge your credit card until your product ships, except for certain special orders.

We normally will ship FedEx and US POSTAL. If you need faster shipment, we can ship 2nd Day or Next Day for an extra charge.

Alaska and Hawaii residents - your order MUST ship 2nd day or faster. Most orders over $100 value will ship with a signature-required to ensure they make it to you. Products that have free shipping only applies to the lower 48 states.

NOTE: We make every effort to get your order shipped as fast as possible. In some circumstances, especially during sales and after weekends, we may not get your order shipped in the time specified. Please rest assured that we will ship your item as soon as we can.

We want you to be 100% satisfied with your purchase from Impact Guns, therefore we offer no hassle returns.

How do I start the return process?

  • Log in to your account and locate and click on the "Request Return" link.
  • An Impact Guns agent will review your request for a return and respond within two business days.
  • All returns are subject to inspection and approval prior to refund being issued.
  • All products need to be in new and original manufacturer condition.
  • As an alternate method, you can send an email to Please be sure to include your original order number and relevant contact information.

When will I get my credit or return?

  • Most returns are fully refunded in 3-5 days after we receive and process the return. It may take longer for the credit to appear in your account depending on your bank. Most items that are in stock ship within 3-5 days after receipt of your returned item but may take longer depending on availability.
  • Returns must be charged back to the original credit card used in the purchase.  If this is not possible, we will refund you via check.

What about damaged/incorrect items?

  • If you received a damaged, defective, or incorrect item, Impact Guns will ship you a replacement of the exact item upon receipt of the damaged or defective item. Impact Guns will send you a return shipping label for the return.

What about return shipping costs?

  • If an Impact Guns error causes the need to return an item or we are replacing a returned defective or incorrect item, then we will pay the associated shipping costs.
  • Otherwise, the customer is responsible for any return shipping costs. When returning an item, please add package tracking and adequate insurance.
Other customers may have experience with this product.  Ask our customer community a question here!

Videos Hide Videos Show Videos


Add to Cart The item has been added

Add to Cart The item has been added