SIG SAUER P320 COMPACT

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95 documented listings116 fit unconfirmedBrowse categories ↓

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What the compatibility labels mean

How we knowHow we check compatibility

Lab testedFit checked by Firearm Lab for the recorded setup.
Documented fitmentSupported by manufacturer, partner, or reviewed community evidence.
Interface matchMounting details match, but this exact model and part have not been confirmed to fit together.

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Model details

Manufacturer

SIG SAUER

Model & version

P320 COMPACT · COMPACT

Mounting details

MIL-STD-1913 Picatinny, Leupold DeltaPoint Pro, SIG SAUER P320 PRO optic cut (ROMEO1PRO / DPP pattern, P320 / M17 / M18 / AXG slides)

Compatibility records

211

Lights & rail fitment

Lights & Lasers

63 listed

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Optics & footprint adapters

Optics

25 listed

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Optic Plates

20 listed

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Sights

30 listed

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Barrels & comps

Barrels

16 listed

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Compensators

8 listed

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Grip & magwells

Magwells

1 listed

ANR Design
P320 ANVL Magwell
Manufacturer documented

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Extended Magazine Releases

1 listed

Armory Craft
Extended Magazine Release Button: P250 / P320
Manufacturer documented

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Base Pads

8 listed

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Magazines

5 listed

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Triggers & internals

Triggers

10 listed

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Takedown levers

1 listed

GoGun USA
Gas Pedal Assist - Thumb Rest for Sig P320 X5, X10, M17, M18, AXG, P250 (All Generations)
Manufacturer documented

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Recoil Springs

3 listed

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Slides

11 listed

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Also on this pistol

Holsters

9 makers

Blackhawkchecked 2026-11-01
Bravo Concealmentchecked 2026-11-01
Concealment Expresschecked 2026-11-01
DeSantis Gunhidechecked 2026-11-01
Galcochecked 2026-11-01
Safarilandchecked 2026-11-01
Tenicorchecked 2026-11-01
Tier 1 Concealedchecked 2026-11-01
Vedder Holsterschecked 2026-11-01

Check each manufacturer’s options for your model, light and optic.

Holster makers (9)

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Categories with no listings (3)

About the SIG SAUER P320 COMPACT

Type: Pistol
Manufacturer: SIG SAUER
Model & version: P320 COMPACT · COMPACT
Caliber: 9mm, .45 Auto
Mounting details: MIL-STD-1913 Picatinny, Leupold DeltaPoint Pro, SIG SAUER P320 PRO optic cut (ROMEO1PRO / DPP pattern, P320 / M17 / M18 / AXG slides)
Barrel length: 3.9"

Lights & Lasers

EPL Duty (Black)

P.ID

APLc (Universal)

PL350G3 OKWv2 Light Package

Optics

RXS-100 Reflex Sight

EFLX CE Pistol Optic

SCS-320

DeltaPoint Pro

Optic Plates

SIG P320 Legion (M17 / M18) w/ R1P/DPP Cut to Trijicon RMR / RMR HD / SRO / Holosun 407C / 507C / 507Comp / 508T / C&H EDC-XL / COMP / COMP MAX / Olight Osight X w/ Dovetail for GLOCK compatible sights

SIG P320 Optics Ready Mount

Optic Mount for Sig Sauer P320 Pro Cut Slides

SIG P320 Legion (M17 / M18) w/ R1P/DPP Cut to Trijicon RMR / SRO / RCR / Holosun 407C / 507C / 507Comp / 508T / C&H EDC-XL / COMP / COMP MAX / Olight Osight X w/ Dovetail for GLOCK compatible sights STEEL

Sights

Sight for Sig P320 Compact, Fixed Charger Tritium Rear,

MEPRO CRIS MPO BACK UP IRON SIGHTS

OPTICS READY STEALTH SERIES FOR SIG SAUER

REAR SIGHT ASSY, P320, X-RAY3, SIGHT PLATE, SIGHT SCREWS, BLK

Barrels

MID LINE MATCH GRADE DROP-IN BARREL (COMPATIBLE WITH P320 COMPACT/X-CARRY)

Threaded Barrel for COMPACT Sig P320

Faxon Match Series Flame Fluted Barrel for P320 Compact 9mm

GGP320 Compact Match Grade Barrel

Compensators

Sig Sauer P320 / P250 Compensator - 2 Port Design

HC320 Sig P320 Compensator

Velocity Defense Compensator for Sig P320

PMM Barrel and Compensator Combos for Sig P320

Magwells

P320 ANVL Magwell

Extended Magazine Releases

Extended Magazine Release Button: P250 / P320

Base Pads

Sig Sauer P320 Carry Magazine Baseplate

SIG P320 / P385 / P211 GTO 9mm / 40 S&W, PLUS-0 Base Pads

Sig Sauer P320 | P211 | P385 Magazine Base Pads Aluminum +0

NDZ Magazine Floor Base Plate for Sig Sauer P320 P250 9mm .357 .40 Cerakote Burnt Bronze

Magazines

A2-320 17-Round

AMAG 15 SG9 – Sig P320 Compact

P250,P320 COMPACT .45 ACP 9RD MAGAZINE

P250,P320 COMPACT 9MM 10RD MAGAZINE

Triggers

SIG P320 COMPATIBLE DROP IN TRIGGER

P320 Adjustable Hybrid Trigger

Sig Sauer P320 Trigger Kit

Sig Sauer P320 Trigger

Takedown levers

Gas Pedal Assist - Thumb Rest for Sig P320 X5, X10, M17, M18, AXG, P250 (All Generations)

Recoil Springs

Sig P320 COMPACT - M18 - P320 Legion X-Carry - P320 AXG Recoil Tuning Kit

Sig Sauer P320 Compact - Carry 3.9" Barrel

Sig Sauer P320 Compact 3.9" Barrel 45Auto

Slides

Sig Sauer P320 X-Five/X5 Armory Craft Slide

IRON SIGHTS FOR SIG P320 COMPACT

GGP320 Compact Slides

Velocity Defense for Sig P320 V2 Slide

Holsters

About the SIG SAUER P320 COMPACT