P365XL Modern Classic Slide

(1 customer review)


Custom P365XL Modern Classic slide designed by Bruce Gray and the Grayguns team. This slide features a refined, classic look that complements the modern design of the SIG Sauer® P365. This is the standard P365 version with the 3.7-inch barrel.

Includes custom slide with OEM slide internals (Striker Assembly, Striker Safety Lock, Extractor and Slide Cap). Options available will vary.

Looking for an optic or sights for your custom slide? Order your choice of optic or sight package and we'll professionally install the optic for free!
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Our custom Modern Classic P365XL Slide focuses first on the weight and balance of the slide. We’ve introduced a traditional 1911 spin with utility-driven serrations in strategic areas. Available in a Black Diamond-Like Carbon (DLC) finish. Each custom slide features the iconic Grayguns logo.

As a classic gunsmith, Bruce didn’t want these P365XL slides to resemble or feel like a wood rasp out of a woodshop. They went through many iterations but settled on something traditional for this modern sporting pistol.

Package Includes

  • Custom Grayguns Modern Classic designed slide
  • OEM Slide Internals: Striker Assembly, Extractor, Striker Safety Lock, and Slide Cap
  • Slides include OEM factory dovetail cuts for a front and rear iron sight option

Available Optics and Sights

Value-Add Bonus – When selecting a slide and including an optional optic and/or iron sights, we include complimentary professional installation (a $50 value).
If you order a slide with sights or optics, expect your slide to ship in seven to 10 business days.

Compatible Optics stocked by Grayguns:

Be very careful when selecting slide options. Other than the optics listed, Grayguns can not guarantee an optic will fit our slide even if it has the same footprint hole spacing and layout. Design differences – including the amount of thread engagement – may make the sight incompatible with your pistol.

P365XL Modern Classic Slide Additional Information

You can directly mount one of our red dot options to the slide. There is no need for an adaptor plate.

Additional information

Weight N/A
Package Dimensions N/A
Slide Configuration

Cut for RomeoZero, Cut for Trijicon RMRcc, Cut for Iron Sights

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4 out of 5 stars

1 review

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What others are saying

  1. denvera1979

    Issue resolved

    denvera1979 (verified owner)

    After some emails and a couple of conversations. The issues have been resolved on an amicable level. The good folks at GrayGuns take their customer service very seriously (as well they should). We have determined (as I understand it) the issues were an unfortunate series of miscommunication and or misunderstanding. Either way they made more than one attempt to make things right and for that they have my respect. Best of luck.

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    • One person found this helpful
      Grayguns Customer Service Team

      Grayguns Customer Service Team

      We’re sorry we did not meet your customer service expectations. We want to clarify some of your comments for you and our website visitors.
      Regarding the P365 slide, you contacted us more than six months after receiving the order. Even though our return policy is limited to 60 days, we still accepted the return. Since the slide was returned with wear marks visible on the breach face and inside in front of the barrel hood, we will not be able to sell the slide as new, and it is in the queue to go out for refinishing. Hence, we charged a 15% restocking fee. Our team went above and beyond by accepting a return more than six months after you received your order.
      The RMRcc does not need an adapter plate for installation on our custom P365 slides, but it does need the sealing plate as provided by Trijicon. As with most optics mounted on slides at or under 1″ wide, the optic is wider than the slide’s width. This does require the sealing plate to be installed per Trijicon’s instructions, as the mounting surface of both our P365 slide and the OEM slide does not fully encompass the sealing boundary.
      We messed up the sweatshirt, sent you the wrong color, and provided you with a full refund for that item.
      We charged a 10% restocking fee for the Wilson Combat module instead of our published 25% fee.
      We hope you reconsider your review and opinion of Grayguns. We also will have one of our team members reach out to you directly. If you have any questions, you can contact us.

      Upvote if this was helpful (1) Downvote if this was not helpful (0) Flag for removal

      Something wrong with this post? Thanks for letting us know. If you can point us in the right direction...




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Many parts sold by Grayguns - including but not limited to triggers, trigger kits, internal components and spring kits - are intended for installation by a qualified armorer or gunsmith who is familiar with the firearm.

Although kits fit with no issues in a great majority of pistols, Grayguns cannot guarantee perfect functionality in every instance.

Due to varying tolerances present in all mass-produced firearms, professional fitting by a qualified armorer who is familiar with the pistol's action may be required.

Grayguns offers installation services for all parts kits we offer. If you have any issues or questions about the installation process, STOP IMMEDIATELY and contact the Grayguns Customer Service Team.