These are reproductions of the Model 21 Safety but will also fit the 104 and 410. May require some fitting of the tabs bLocking the Trigger movement because we had them made longer then usual, so they could be fitted to worn Receivers and worn Triggers. All that is required is that the tabs that are too long be filed til they are short enough so the gun will cock and not too short or the Safety will not block the Triggers when the gun is cocked.
