Though I cant see it,I was thinking the business end of some kind of dent raiser.but the larger end disc say nah
How about something to do with the bbl "hollows" on a for-end...as in a kinda handy bbl diameter prop, to help as a rough sizing aid when shaping out those bbl channels
pretty tough ( but fun ) to guess without a pic, can you get one up ?...picture, that is,lol
franc

Last edited by Franc Otte; 06/21/15 03:48 AM.