The flat doll headed spring that goes between the barrel band and magazine tube; Is it the same size/part for 20 ga. and 12 ga.? I have always thought of it as an anti-rattle device usually missing on field guns. Thanks again.
Thank you both; I did not know the reason for the spring but had observed over the years that in most guns the spring was missing. Have seen some otherwise nice guns with the receiver scratched up in that area.
if the band assy loosens, that spring gets pushed out the front by the forearm.
i wish it held the forearm back when assembling. if you let go of the forearm just a little , it just spring loads it back towards the receiver. i never trust it and always hold the forearm tight when assembling.