What’s the best SIG P320 accessory for a first-time upgrade?

Start with a red dot mounting plate or upgraded night sights. Both dramatically improve accuracy and targeting speed on the SIG P320.

Can I mount an optic on my P320 without machining the slide?

Yes. We offer dovetail and rear-sight mount plates that allow optics like Trijicon RMR or Holosun 507c to be mounted without modification.

Are your accessories compatible with the M17 and X5 models?

Yes. Our accessories list full compatibility with SIG P320 M17, M18, X5, Legion, X-Carry, and Compact models.

Do you sell P320 holsters that fit lights like TLR-7 or X300U?

Yes. We carry IWB and OWB holsters built for P320s with Streamlight and SureFire weapon lights attached.

SIG P320 Accessories – Mounts, Grips, Holsters & Sights

SIG P320 Sights

SIG P320 Holsters

Sig P320 Recoil Spring

Sig P320 Mag Extension

**DPM Recoil Reduction System SIG P320 Compact 3.9"** $96.93

**DPM Recoil Reduction System SIG Sauer P320 Full Size , M17 & WCP320 Wilson Combat** $128.83

**Ghost MOAB - Mother of all Base Plates for the SIG P320/P250 (4-Pack)** $13.45

**EGW Dovetail Mount for the Trijicon RMR, Holosun 407c / 507c for Sig Sauer P220, P226, P229, P320** $47.49

**Trijicon HD XR Night Sights- Sig Sauer 9mm / .357 SIG (#8 Front / #8 Rear)** $137.20

**Bobro SIG P320 M17 RMR Mount with Integrated Rear Sight** $118.28

**Blackpoint Mini Wing IWB Holster for Sig Sauer Pistols** $93.95

**Trijicon Sig Sauer 9mm, .357SIG (Excluding the P938) Night Sight Set (SG01)** $98.00

**EGW Sight Mount For the Vortex Razor for Sig P220-229, 320** $47.49

**EGW Viper/Venom Sig Sauer P220-P229, P320 Red Dot Mount (fits Burris FastFire and Docter)** $47.49

**EGW Vortex Venom Adapter Plate For Optics Ready Sigs cut for the Romeo 1 (P320 RX, X-Five)** $47.49

**UM IWB/OWB Qualifier Holster for Sig P320 Compact** $43.00

**UM IWB/OWB Qualifier Holster for Sig P320 XCompact Series** $43.00

**Ameriglo Spartan Sights - Sig Sauer 9mm / .357 SIG (#8 Front / #8 Rear)** $92.31

**DPM Recoil Rod Reducer System for P320 Compact .45 ACP Nitron *B.O.S.S** $98.03

**DPM Recoil Reduction System for Sig Sauer P320 X Full Size 4.7″ Barrel** $128.83

**Henning Group EDC Magazine Extension - Sig P320 X-Series - Plus 3** $34.95

**Henning Group Magazine Extension KIT for Sig Sauer P320 9mm / 40S&W** $59.95

**Blackpoint Tactical Mini Wing Holster for Sig P320** $93.95

**Blackpoint Tactical Leather Wing Holster for Sig P320** $93.95

**Blackpoint Mini Wing Light Mounted IWB Holster for Sig P320 with Streamlight TLR-7** $103.95

**Blackpoint Tactical Leather Wing Light Mounted OWB Holster for Sig P320 w/ Streamlight TLR-7** $103.95

SIG P320 Accessories – Build Your Perfect P320

The SIG Sauer P320 is one of the most modular and capable handguns available today — and with the right upgrades, it becomes a true custom performer. Whether you carry it for duty, defense, or competition, Mounts Plus carries the best SIG P320 accessories to elevate your setup.

From red dot mounts and night sights to recoil systems, grip modules, holsters, and mag extensions — you’ll find everything you need to enhance your P320's performance and comfort.

🔝 Best-Selling SIG P320 Accessories

🔭 Red Dot Mounting Plates & Adapter Systems

Mounts for Trijicon RMR, Holosun 507c, Vortex Venom, and more
Dovetail and direct optic plates — no slide milling required
Fits P320 Compact, X-Carry, M17, X-Five, and RX Pro models

🎯 Iron Sights & Night Sight Upgrades

Trijicon, Ameriglo, SIG OEM, and XS Sights
Options for suppressor-height, fiber optic, and HD tritium
Co-witness with red dots or use standalone

🔧 Recoil Spring Assemblies & Guide Rods

DPM Systems captured recoil systems
Reduce felt recoil and improve cycling
Tuned options for Compact, Full-Size, X5, and Legion variants

🖐️ Grip Modules, Magwells & Extensions

Custom grip modules with enhanced ergonomics
Magazine base pads for +3/+5 capacity
Add flared magwells for smoother reloads

🔫 Holsters – IWB, OWB, & Light-Compatible

Kydex holsters for concealed or duty carry
Fit P320 + Streamlight TLR-7A, TLR-1, or SureFire X300
Options from BlackPoint, Blade-Tech, UM Tactical, and others

✅ SIG P320 Compatibility

All accessories are tested for compatibility with these models:

SIG P320 Compact
SIG P320 Full Size
SIG P320 X-Carry / X-Compact
SIG P320 M17 / M18
SIG P320 RX / X5 / X-VTAC / AXG / Legion

Each product page specifies exact fitment details — so you know it works before you order.

🏆 Trusted Brands for SIG P320 Upgrades

We stock P320 accessories from brands trusted by military, law enforcement, and competitive shooters:

DPM Systems
EGW – Evolution Gun Works
BlackPoint Tactical
Trijicon & Ameriglo
UM Tactical
Streamlight & SureFire

❓ SIG P320 Accessories FAQs

Q: What’s the best first upgrade for the P320?
We recommend a red dot mount or enhanced iron sights, followed by a recoil spring upgrade and grip module that fits your hand size and purpose.

Q: Can I install a red dot without modifying my slide?
Yes! Use a dovetail or rear sight adapter from EGW or Bobro Engineering — these allow you to add optics without permanent modifications.

Q: Are your holsters light-compatible?
Yes. We offer holsters designed for P320s equipped with Streamlight TLR-7, TLR-1, or X300U weapon lights.

Q: Will these accessories work on my M17 or X-Series pistol?
Absolutely. Our mounts, sights, and mag extensions list M17, M18, X5, and Legion compatibility where applicable.

🚀 Why Buy from Mounts Plus?

✅ Over 30 years of firearm accessory experience
🛠️ Products trusted by professionals, LE & competitive shooters
🛒 Fast shipping & hassle-free returns
⭐ Top-rated customer service & support

👉 Shop SIG P320 Accessories Now
From red dot mounts and night sights to grip upgrades, mag extensions, and holsters — Mounts Plus has the tactical gear and parts to customize your SIG P320 for peak performance.

SIG P320 Accessories – Mounts, Grips, Holsters & Sights | MSP