I still have the steel plug for a 12 ga 3" 870 I bought in the 60's, which I lost when I fell through the ice while riding a sno-go, on a slough that dumped into the Kuskokwim River in AK.

It did come with the 870 when I bought it, along with a plastic plug. The plug didn't have any type of screw on it. It just had a narrow lip that sat atop the magazine, underneath the cap.


Cameron Hughes