450 Bushmaster thread protector??

[IvarTheBoneless]

Can anyone recommend what I may need for a thread protector As far as size/threads for a Ruger American 450 bushmaster with the short barrel?

 

[Mimachinist]

One should be in the box I believe. If not give Ruger a call and they’ll probably send one out for free. If you want to source on yourself the threads are 11/16-24. Secure it with some loctite or a wave washer.