Your current recoil spring weight can be determined by measuring the diameter of the spring wire with calipers.
Spring Weight (in pounds) | Conventional Coil | Variable Coil |
---|---|---|
5 | n/a | .034 |
6 | n/a | .035 |
7 | .038 | .036 |
8 | .038 | .038 |
9 | .040 | .040 |
10 | .041 | .040 |
11 | .042 | .041 |
12 | .042 | .042 |
13 | .043 | .042 |
14 | .043 | .043 |
15 | .045 | .044 |
16 | .045 | n/a |
16.5 | n/a | .045 |
17 | .046 | n/a |
17.5 | n/a | .046 |
18.5 | .047 | .047 |
20 | .047 | .047 |
22 | .048 | .048 |
24 | .050 | n/a |
26 | .052 | n/a |