Strike Industries P320 MMR | Modular Magazine Release for Sig Sauer P320
Not Yet Rated | Write the First Review SKU: 222-STR-SI-P320-MMR
UPC: 709000000000
MFG#: SI-P320-MMR

The Strike Industries Modular Magazine Release (MMR) is the next evolution in P320 ergonomics and control. Designed specifically for the Sig Sauer P320, this drop-in upgrade gives shooters customizable handling and improved reload efficiency without sacrificing factory reliability.

With its modular button design, you can choose the perfect length and profile for your grip and setup. Whether you prefer a low-profile configuration for carry or an extended button for competition, the P320 MMR delivers fast, consistent magazine drops from any angle.

Machined from durable materials and engineered for precision fit, this mag release enhances control while maintaining compatibility with both factory and aftermarket grip modules.

Features

• Fully Modular Design: Includes interchangeable buttons to adjust length and feel.

• Enhanced Ergonomics: Improves reach and control for faster reloads under stress.

• Drop-In Installation: Direct fit for Sig Sauer P320 platforms; no gunsmithing required.

• Durable Construction: Precision-machined for strength and reliability in any environment.

• Ambidextrous Setup: Configurable for left or right-handed shooters.

• Optimized Compatibility: Works with most factory and aftermarket grip modules, including Wilson Combat and X-Series frames.

Why Upgrade to the Strike Industries P320 MMR?

The standard P320 magazine release works well—but the Strike Industries P320 MMR makes it exceptional. Its modular button system gives you flexibility to fine-tune your control, ensuring smoother, faster reloads in defensive, competitive, or duty applications. Whether you’re customizing for comfort or performance, this is one of the best P320 upgrades available.

Compatibility

• Fits: All Sig Sauer P320 models (Full Size, Carry, Compact, X-Series, and Wilson Combat Grip Modules)

• Does Not Fit: P250 or manual safety-equipped variants

Installation

The P320 MMR is a true drop-in upgrade—remove your factory magazine release and install the modular system using basic tools. No fitting or gunsmithing required.

FAQs

Q: Will this fit my Sig Sauer P320 Compact or X-Series?
A: Yes. The Strike Industries P320 MMR is compatible with all standard P320 grip modules, including Compact, Full Size, Carry, and X-Series.

Q: Does this work with aftermarket grip modules?
A: Absolutely. It fits most aftermarket frames, including Wilson Combat and Polymer80-style modules.

Q: Is this mag release ambidextrous?
A: Yes. The MMR can be configured for either left- or right-handed operation.

Q: Is any gunsmithing required?
A: No. This is a drop-in part that installs easily with standard tools.

Q: What materials are used in the construction?
A: The main body and buttons are precision-machined from high-strength materials to ensure long-term durability and performance.

Q: Can I use this for competition shooting?
A: Definitely. The extended button configuration is ideal for faster reloads in competitive environments.