Browning Hi-Power Mainspring Tool

If you’ve ever wrestled with a Browning Hi-Power or Springfield SA-35 mainspring, you know it can be a real knuckle-buster. This mainspring tool is a simple but effective shop aid designed to compress and contain the mainspring so you can remove the support nut and pin from the mainspring strut without the spring flying across the room. It saves you time, frustration, and the occasional bloody fingertip — whether you’re swapping springs for a trigger job or just doing routine maintenance.

Will This Fit My Gun?

• Browning Hi-Power (all standard models)
• Springfield Armory SA-35
• FEG Hi-Power clones (most variants)
• Any Hi-Power pattern pistol using a standard mainspring and strut assembly

Key Features

• Professional gunsmith-grade construction — made in Peoria, AZ
• Compresses and holds the mainspring securely for safe disassembly
• Works with the factory mainspring support nut and pin
• Reduces cuss words and saves time on spring swaps
• Compact design — easy to toss in your range bag or tool box

Install Difficulty: 2 out of 5

This isn’t something you install on the gun — it’s a tool you use during disassembly. You’ll need a small punch or drift pin to drive out the mainspring support pin, plus a bench or stable surface. No special skills required, but a little mechanical patience helps. Watch our install video linked on the product page for a walkthrough.

Frequently Asked Questions

Will this work on a Springfield SA-35?

Yes. The SA-35 uses the same mainspring and strut assembly as the classic Browning Hi-Power. This tool fits both.

Do I need to modify my gun to use this tool?

No modifications needed. It’s a standalone tool that clamps around the mainspring and strut — no permanent changes to the firearm.

Can I use this with aftermarket mainsprings?

Yes, it works with standard-diameter mainsprings from any manufacturer. If you’re running a reduced-power or extra-power spring, the tool still compresses and holds it securely.

We ship fast from our shop in Peoria, AZ. All tools are backed by our standard warranty — if it breaks or doesn’t work as described, let us know and we’ll make it right.