An ISMI flat wire recoil spring sold by EGW, rated at 14 pounds for Springfield 1911 pistols with a 4-inch barrel. Flat wire springs hold their rated tension longer than round wire springs. A 14 lb rate is a common choice for tuning a Commander-length 1911 to a given load.
- Brand: EGW (sold) / ISMI (spring)
- Type: Flat wire recoil spring
- Rate: 14 lb
- Fits: Springfield 1911 with 4" barrel (Commander length)