SIG P320
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SIG P320

(57 reviews) Write a Review
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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

  • P320c Slide Work and Nitride

    Posted by Carlos on Feb 15th 2021

    Clean serrations, sleek nitirde, and a perfectly milled slide for my optic. All at an unbeatable price. What else can you ask for?

  • Quality Work!

    Posted by Dave on Jan 11th 2021

    If you are thinking about sending your slide off to Jagerwerks do it! Their customer service is second to none and the slide work is absolutely beautiful. Cerakote work is fantastic. Thank you Steven for the amazing work and customer service! I will be sending more to Jagerwerks in the future.

  • Stunning

    Posted by Dylan Hop on Nov 23rd 2020

    I absolutely love the detailed work that Jagerwerks is able to do when it comes to their slide cuts and milling. I selected my package almost a year before I was able to send it in and they competed my request two weeks faster than advertised. I had changed my mind on what I wanted it coated with and they were able to adjust to my desires without any issues. The top window and slide serrations are perfectly cut, detial is impeccable and I am very impressed with their work. I will be placing more orders in the future.

  • P320c Slide Work

    Posted by Carlos on Nov 18th 2020

    Absolutely fantastic work. I've seen the pictures on instagram and online, but I was still shocked at how good my slide looked when it got back to me. The nitride and front slide serrations look incredible. Quick turnaround time, they kept me in the loop, and the price is impossible to beat. Sending them another slide right away!

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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.