SIG P320
Zoom the image with the mouse

SIG P320

(57 reviews) Write a Review
Size Chart

Related Products


If holster wear/durability is a concern then we highly recommend going with our Black Nitride as Cerakote is a wearable item. 

Cerakote and Black Nitride are for the entire slide. (Black Nitride adds 2-3 weeks lead time) 

For Cerakote color codes and examples:

It is implied that the customer will have arrangements for coating of a slide if NONE is selected for color. If NONE is chosen there is potentially an issue for rust and corrosion to develop on the slide. Jagerwerks is not responsible for misuse and neglect of bare metal.

Trijicon RMR cut with front posts. You are able to use Trijicon supplied RMR screws. Cut at .125" 

Sig Romeo 1 Pro does not have recoil posts*

We do not charge extra for disassembly/reassembly, if you send your entire slide assembly we will laser align the sights for you.

If you include new sights we will install the new ones at no charge. If you include your RMR we will align it at no charge.

A Sig rear dovetail will be milled for the rear iron sight. 

Some of the older model 320's have a deep channel cut underneath/rear section of the slide. We cannot mill these for optics (see photo) 

On the newer 4.7" models we cannot mill top front serrations due to the deep pocket cut on the front of the slide. We can still mill a top front window. (see photo)

57 Reviews

  • Sig p320

    Posted by Eric Swartz on Nov 16th 2020

    Love the work they did on my p320 , fast turn around and turned out exactly how I wanted it .
    Will be sending more in forsure ! thanks guys

  • Sig 320 Optic Cut

    Posted by Michael on Nov 9th 2020

    Jagerwerks did an excellent job on my Sig p320. Service was under 4 weeks door to door. RMR was sighted in spot in and my new sights installed Thanks again for great service at an excellent price.

  • Excellent work GREAT PRICE!!!!

    Posted by Sherman Robbins on Oct 29th 2020

    Jagerwerks did an excellent job on my Sig p320. Service was 2 weeks faster than the current lead time. Thanks again for great service at an excellent price.

  • sip p320

    Posted by timothy nguyen on Oct 5th 2020

    I cant say enough about the work they did on my p320. They milled my slide for an RMR and did a window cut and extra front serrations on the top. One topped it all off was the black mulitcam cerakote they did on the slide at the end. Again thank you Jagerwerks, great customer service, fast turnaround, and the price can’t be beaten.

Write a Review

Shipping & Returns


Please ship to our address 

JagerWerks Eng LLC 

111 D ave East 

Kalamazoo MI, 49009 

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

 Shipping Insurance and Signature Confirmation

When shipping slides for milling, SHIP SLIDES ONLY. Do NOT ship the lower of the firearm as we are not transferring the firearm. We only custom mill slides.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.