P320 FULL SXG 9MM/40/.357 GRIP MODULE – BLACK
SIG Sauer P320 Full SXG 9mm/.40/.357 Grip Module — Black
So you want a metal-framed P320 without buying a whole new pistol. This grip module gets you there. The SIG Sauer P320 Full SXG (Stainless XSeries Grip), full-size configuration, in black Nitron finish. Twenty-two ounces of solid stainless steel. Drops your FCU straight in. No FFL required.
P320 FULL SXG 9MM/40/.357 GRIP MODULE – BLACK This is one of the heaviest, most recoil-reducing grip options available for the P320 platform. First, 22 oz of steel mass absorbs more recoil energy than any polymer grip module can, turning a snappy pistol into a genuinely flat shooter. Next, it ships complete with G10 grip panels and G10 backstrap by LOK Grips, a flat blade trigger, stainless steel magwell, and the SXG slide catch assembly with rubber damper. Finally, no FFL is required since the grip module is not a serialized firearm — just install your existing P320 FCU and you’re done.
Does this P320 FULL SXG 9MM/40/.357 GRIP MODULE – BLACKmodule require an FFL transfer?
No. So the P320’s fire control unit (FCU) is the serialized firearm component, not the grip module. Therefore, this ships directly to you without an FFL transfer. However, you’ll need your own P320 FCU to complete the build — the FCU is not included with this grip module.
What slide assemblies are compatible with this grip module?
P320 FULL SXG 9MM/40/.357 GRIP MODULE – BLACK XFIVE and Full-size P320 slide assemblies in 9mm, .357 SIG, and .40 S&W. So this grip module is sized and configured for the full-size P320 slide footprint. Also, XTEN FCU is explicitly NOT compatible with this grip module. Therefore, confirm you’re running a standard P320 FCU, not the XTEN-specific version, before ordering.
What’s the magazine compatibility situation?
P320 FULL SXG 9MM/40/.357 GRIP MODULE – BLACK New-style magazines only, when the magwell is installed. So with the stainless steel magwell installed, this module only accepts new-style 17rd, 21rd, and 30rd magazines the ones with the circular SIG SAUER logo and square locking tab on the basepad. Also, older magazines marked “SIG SAUER” with circular locking tabs require basepad modification to fit. Therefore, check your magazine basepads before assuming your current mags will drop in.
Why does 22 oz of steel matter for recoil?
P320 FULL SXG 9MM/40/.357 GRIP MODULE – BLACK Mass reduces muzzle flip directly. So a heavier grip module adds mass below the bore axis, counteracting muzzle rise during the firing cycle. Also, 22 oz is substantial — nearly a pound and a half of steel specifically positioned to dampen recoil at the source. Therefore, P320 owners who switch to the SXG consistently report dramatically flatter shooting compared to any polymer grip option.
What’s included with this P320 FULL SXG 9MM/40/.357 GRIP MODULE – BLACK module?
A complete, ready-to-install kit. So you receive the stainless steel grip module body, stainless magwell, G10 matte black grip panels by LOK Grips, G10 matte black backstrap by LOK Grips, flat blade trigger, and the SXG slide catch assembly with slide catch, slide catch spring, and rubber damper. Therefore, the only thing you bring to this build is your existing P320 FCU and slide assembly.
Specs Table
| Spec | Detail |
|---|---|
| FFL Required | No — grip module only, FCU not included |
| Compatibility | P320 FCU (standard only — XTEN FCU NOT compatible); XFIVE and Full-size slide assemblies |
| Calibers | 9mm, .357 SIG, .40 S&W |
| Weight | 22 oz (stainless steel construction) |
| Material | Stainless Steel, Nitron matte black finish |
| Grip Panels | G10 matte black by LOK Grips |
| Backstrap | G10 matte black by LOK Grips |
| Magwell | Stainless Steel, included |
| Trigger | Flat blade trigger, included |
| Slide Catch | SXG assembly with rubber damper, included (replace standard black post with included green damper) |
| Magazine Compatibility (with magwell) | New-style only: 17rd, 21rd, 30rd with circular SIG logo and square locking tab |
| Older Mag Compatibility | Requires basepad modification |
| Best For | Competition, flat-shooting builds, recoil reduction, full-size P320 upgrades |
| Price | $750 |
FAQ
Does this P320 FULL SXG 9MM/40/.357 GRIP MODULE – BLACK module require an FFL transfer? No. The P320 FCU is the serialized component. This grip module ships directly to you without FFL paperwork.
Does the FCU come with this grip module? No. You install your existing P320 FCU into this module.
Is the XTEN FCU compatible with this module? No. SIG explicitly states the XTEN FCU is not compatible with SXG grip modules.
Will my existing P320 magazines work with this module? With the magwell installed, only new-style magazines work directly. Older “SIG SAUER” marked mags with circular locking tabs need basepad modification.
What’s different about the SXG vs. the TXG grip module? The SXG uses solid machined stainless steel at 22 oz. The TXG uses tungsten-infused polymer at approximately 16.6 oz — lighter but less effective at recoil mitigation.
Do I need to replace the slide catch? SIG strongly recommends replacing the standard black slide catch post with the included green rubber damper when using the SXG module.
What grip panels come with this module? G10 matte black grip panels and backstrap by LOK Grips — a premium grip material choice.
Find more SIG P320 grip modules and FCU accessories at gunpartspalace.com.
