The Ed Brown Flat Wire Recoil Spring (Ed Brown part no. 918-FW-45C) is a replacement recoil spring built for Commander-frame 1911 pistols in 45 ACP, rated at 18 pounds.

Key Specifications

• Built for Commander-frame 1911 pistols.
• Chambering: 45 ACP.
• Rated at 18 lb spring weight.
• Uses flat wire spring construction rather than round wire.
• Classified as a firearm part/accessory, not a regulated firearm itself — no FFL transfer required to purchase.

Frequently Asked Questions

What does ‘flat wire’ mean for a recoil spring? Flat wire recoil springs use a flattened wire cross-section rather than round wire, packing more coil travel into the same length for a more consistent recoil curve.

What 1911 frame and caliber is this spring built for? This recoil spring is built for the Commander frame in 45 ACP.

Is the guide rod included? This listing is for the recoil spring itself; Ed Brown also sells complete guide rod and spring systems separately.

Buy the Ed Brown 1911 Commander 45 ACP 18# Flat Wire Recoil Spring

Order the Ed Brown 1911 Commander 45 ACP 18# Flat Wire Recoil Spring from a Lubbock, TX gun shop. Browse more Ed Brown parts in our Handgun Parts category.