Hello, I just took an OSS Bannar off my rifle because I needed to install a suppressor-compatible device. The Bannar has run great (~800 rds) and I'll miss it. I bought it new for 100--will part with it for $40
Reference item on OSS website https://huxwrx.com/bannar-556/
Cheers
Dan
Sold
Costco East
what part of the springs are you?