A metallic ring surrounding the magazine tube to slow the rate of recoil allowing for safe ejection of the shotshell and subsequent feeding of the next cartridges (e.g., Browning Auto-5 shotgun).
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A metallic ring surrounding the magazine tube to slow the rate of recoil allowing for safe ejection of the shotshell and subsequent feeding of the next cartridges (e.g., Browning Auto-5 shotgun).
1