Description
If you've been carrying a Sig P320 for any length of time, you know the factory magazine catch sits pretty low on the grip. It works fine, but it's not the most natural thing to reach for when you need to drop a magazine fast. The Wilson Combat extended magazine catch solves that.
Made from precision-machined S7 tool steel and finished with a blued coating, this is a genuine upgrade that's built to last through thousands of reloads. It drops right in without any modification to your gun. The extended profile gives you better reach without dramatically sticking out, so it won't snag your holster the way some oversized releases do. The angled, ergonomic surface ensures positive engagement every time you press it.
Drop-In Replacement Design
This extended magazine catch is compatible with all generations of the P320 platform, whether you're running a standard frame, an X-Series module, or a Wilson Combat WCP320. It works in 9mm, .357 SIG, and .40 S&W configurations. Installation is straightforward since it's a direct swap for the factory catch.
Built for Reliability Under Pressure
Wilson Combat's "Bullet Proof" line represents their higher-end components. Every part goes through exacting quality control, and this catch is designed to function flawlessly through practical shooting, competition, or carry scenarios. The fully machined construction means no stamped parts or shortcuts. You get the same material and machining standards that go into their complete P320 builds.
Key Specifications
- Manufacturer: Wilson Combat
- Model: Bullet Proof 320-MC
- Manufacturer Part Number: 320-MC
- UPC: 810025503178
- Material: S7 Tool Steel
- Finish: Blued
- Installation Type: Drop-in replacement
- Compatible Calibers: 9mm, .357 SIG, .40 S&W
- Compatible Models: P320 all generations and variants including WCP320
- Incompatible Models: P320 .45 ACP grip modules
What’s Included
- Wilson Combat extended magazine catch
Frequently Asked Questions
Will this extended magazine catch work with my third-party grip module?
Yes, this catch works with any generation P320 grip module from Sig, Wilson Combat, and most popular aftermarket manufacturers, as long as they're in 9mm, .357 SIG, or .40 S&W. The only exception is if you have a .45 ACP grip module. Just verify that your grip module is P320-compatible.
Do I need to install this myself or take it to a gunsmith?
It's a straightforward drop-in replacement, but Wilson Combat and other manufacturers recommend having a qualified gunsmith do the installation. It involves removing your grip from the frame and swapping the catch, which takes just a few minutes if you're comfortable with it.
How much longer is this compared to the factory catch?
The extension is modest—it's just enough to make the release easier to reach and engage without creating any snag issues with holsters or normal handling. You won't change your grip or shooting hand position; it just gives you a more ergonomic target to hit.
Does this come with the spring and stop components?
No, this is just the catch itself. You'll reuse the factory spring and stop from your original P320 grip. If you need a complete kit with all parts, Wilson Combat offers a separate spring and stop kit.




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