Which is illegal in CA. Bayonet mount on a gun is unlawful there.
= = =
I thought bayonet mount was only a problem as a ‘feature’ on a semi-automatic centerfire rifle capable of accepting a magazine holding more than 10 rounds.
My Garand had a bayonet mount before it was lost in the big boating accident (and let me say it was very hard to find enough water to float a boat during the drought).
They may have extended it to other arms but in this case I think they showed an M1 carbine.