P320 Modern Classic Slide, 5” Bull Barrel
$825.00 – $875.00Price range: $825.00 through $875.00
Custom Modern Classic P320 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® P320. This is the 5-inch version, made famous by the P320 XFive.
Includes custom slide, fitted 9mm bull barrel, Grayguns Guide Rod and Spring, and all internals. Options available will vary. Does not include optic or sights.
Description
Our custom Modern Classic P320 5-inch slide package 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 his slide 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
- Grayguns Guide Rod with Recoil Spring
- Fitted OEM 9mm bull barrel
- OEM internals (Ejector, Striker Assembly, and Slide Cap)
- Choice of optic, sights, or prepped slide
P320 Modern Classic Slide – 5-inch – Additional Information
The Grayguns team has fitted each barrel to the slide to ensure a tight and more consistent lock-up.
You can directly mount one of our red dot options to the slide. There is no need for an adaptor plate.
The FTP Alpha 3 will not fit our slides. Although the hole pattern is the same as a Romeo3 Max, the footprint of the FTP optic is too long.
Additional information
| Shipping Weight | N/A |
|---|---|
| Shipping Dimensions | N/A |
| Slide Configuration | Cut for Romeo3 Max, Cut for Romeo1 Pro, Cut for Trijicon RMR, Cut for ACRO P-2 with Rear Sight, Cut for Iron Sights |
9 reviews for P320 Modern Classic Slide, 5” Bull Barrel
| 5 star | 77 | 77% |
| 4 star | 22 | 22% |
| 3 star | 0% | |
| 2 star | 0% | |
| 1 star | 0% |
Sorry, no reviews match your current selections
P320 Modern Classic Slide, 5” Bull Barrel
Related Products
-

P320 .45ACP Hard Duty Extended Base Pad
$19.00 Add to cart -
Sale!

Laser-Sculpted P320 TXG Tungsten-Infused Grip Module (Blemished)
Rated 5.00 out of 5$247.00 – $399.00Price range: $247.00 through $399.00 Select options This product has multiple variants. The options may be chosen on the product page
Disclaimer
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.






Ordered one with the RMR cut during the July 4th sale. Planning on installing the RMR HD, Perfect fit with the Mischief Machine commander full-size grip module. Would be great if it had a dovetail cut for rear sights.
Ordered one with the Angry Bear red fiber sites installed during the July 4th sale. Perfect fit with the Mischief Machine full-size commander grip module. Fit is tight with excellent color match.
This is my first time using “gunsmith fit” parts so I really didn’t know what to expect. I was blown away! Slide to barrel fit is amazing. Finish is also amazing. The slide serrations provide very good grip. I wish there were just a bit more of them (not like the Lockwood slide).
I did have barrel to FCU fitment issues. Ended up sending the whole gun in. They fixed the problem and got it right back to me. Runs like a Swiss watch now!
I won’t lie, I bought this product and somewhat regretted it. That is, until I shot it. I shot this alongside a Sig P226 X5 Legion and a Staccato P. This slide on a TXG frame vastly outperformed the more expensive Staccato P. It was great shooting, extremely accurate, and returned rapidly for follow on shots. I have to admit that I have a training bias: I’ve fired thousands of rounds through a P320 X5 (old model) and an M17, but the performance on the gray guns was just incredible.
Just got all the parts to complete this project and haven’t had a chance to test it out yet but the fit amd finish is perfect. Waiting for grayguns to get their black and grey tgx grip module back in stock so i can get one..