P320 Lockwood Slide, 4.7” Bull Barrel


The Lockwood P320 Slide was designed by USPSA Grand Master Isaac Lockwood and the Grayguns team. This custom 4.7-inch Bull Barrel configuration features an aggressive texture and optimal mass balance for USPSA Carry Optics.

Includes custom slide, fitted 9mm bull barrel, Grayguns Guide Rod and Spring, and all internals. Options available will vary.

Photo shown is our Lockwood P320 Slide with DLC finish installed on a P320 with SIG Sauer® optic.

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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Personally commissioned and designed by USPSA Grand Master Isaac Lockwood, this P320 slide is designed explicitly for Carry Optics and has the following features.

  • 4.7-inch full-size slide with optimal mass balance and aggressive texture
  • A custom 5-inch P320 X-Five Bull Barrel cut down and hand-fitted for the 4.7-inch slide length.
  • Diamond-Like Carbon (DLC) finish

We’ve provided a fast but very soft and flat shooter by balancing this particular combination of slide and barrel mass. The red dot tracks more consistently in the window for many who have tried this combination.

Package Includes

  • Custom Grayguns Isaac Lockwood designed slide
  • Grayguns Guide Rod with Recoil Spring
  • Fitted OEM 4.7-inch 9mm bull barrel
  • OEM internals (Ejector, Striker Assembly, and Slide Cap)
  • Choice of optic

Lockwood P320 Slide – 4.7-inch – Additional Information

The Grayguns team uses an original OEM 5″ bull barrel from the P320 XFive and cuts and fits each slide and barrel combination 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.

Additional information

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Package Dimensions N/A
Slide Configuration

Cut for Romeo3 Max, Cut for Romeo1 Pro, Cut for Trijicon RMR


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.