180ls1
WKR
- Joined
- Apr 19, 2020
- Messages
- 597
My 06 boss is 9/16x24 as well. Late 90’s m70 featherweight
9/16-24
I got one of these for my A-Bolt II 270 with Boss and it works great with my suppressor:
Thread Adapter 9/16×24 RH to 5/8×24 – Silencer Central
Thread Adapter 9/16×24 RH to 5/8…www.silencercentral.com