Question about bayo mount

[Craig0ry]

What kind of bayonet fits these extensions?

 

[Grove]

Standard M9 aka plain jane M16 pig stick.

 

[angrysoldier]

i was going to say c7/8 pig sticker.

 

[Craig0ry]

thanks guys

 

[badboybeeson]

c7 aka m7 works the best
bbb

 

[easy]

M9's will also fit.