AR15 bolt assembly - Where to buy?

[sushix2]

Does anyone know where I can purchase a bolt assembly (NOT CARRIER GROUP) (stripped or not) in Canada?
I don't know if you guys saw my other thread but the firing pin hole on my existing bolt is grossly worn out, causing primers to pierce.

 

[F22_RaptoR]

Hmm, I'm pretty sure Wolverine would have the Daniel Defense bolt heads, but since their website is FUBAR right now, I can't find anything on it.

Arms East looks like they have Stag bolt heads in-stock right now though.