Music Wire, Round, 0.022 in Wire dia, +/-0.0004 in, Approximate 774 ft per lb, 1/4 lb Coil

This is fun pretty much for springs. CA new gun laws restrict online access to OEM maintenance parts and compliant magazines. So was able to make a trigger bar return spring better than the original which snapped. That one was more brittle than this. Ironic, they say it is to stop ghost guns but push you into making your own parts. I know, just move, plan to. In meantime, make own or buy out of state. They shot themselves in the foot with these new laws. Always a workaround!