Barrel Bushings
Radial Bore Barrel Bushings for Gov't Models and Commmanders
To order - you need to know your Length (Gov't Model with 5" barrel or Commander with 4 1/4" barrel), Material - (Blue or S/S) and your barrel's O.D at the muzzle - (.579", .580", .581" or .582").
You will need to measure your barrel's O.D. (just behind the muzzle where the bushing sits when in battery) with a micrometer, as calipers aren't really up to the task of measuring to .001". Measure the diameter all around the circumference to see if you have any high spots. Then choose the bushing that you need.
For example, if you have a caliper that measures to the tenth of a thousandth (0.0001") and it tells you that your barrel measures to say, .5805", then either order a .581" bushing or be prepared to reduce the diameter of your barrel to accept the .580". Do not remove material from inside the bushing, as that will damage the radial ring.
All bushings have an O.D. of .701" so depending on your slides ID, some fitting to the bushing OD may be required.
See how the Radial Bore Bushing works
