DirtTGuy Sr. Member Joined Aug 16, 2015 Messages 278 Reaction score 309 Golden Thread 0 Location Maine Detector(s) used Nokta Makro Legend Garrett Apex Primary Interest: Metal Detecting Sep 20, 2020 #1 Metal plug on right was on top. Looks like a fireing pin on the inside. Last edited: Sep 20, 2020 Upvote 0