Convert Stevens 200 243 to 223 . Bolt part numbers needed.

Picked up a new Stevens 200 in 243 win. just before xmas. Can someone tell Me if these are the part numbers / product# from Midway that I need to order to convert it to 223 win.

I already have the the 223 barrel that I picked up from someone locally. And I have the other stuff to switch the barrel's already.
Should I just buy the whole bolt assembly or , can I just buy the bolt 223 bolt head and proper blind magazine ?

Midway Product # 548296 - 223 Bolt Head
# 722986 - 223 Bolt
# 472997 - 223 Magazine Box

Thanks.

Buying a complete both removes that swapping of parts & is not that much more for peace of mind, but you still need the extractor parts as they dont come with it.
You will nee a .223 magazine follower also as the .223 box is shorter due to the baffle in it.
Bolt head swap parts.
Head, ejector spring, pin, ejector, extractor, extractor spring, extractor ball.
The firing pin hole may need to be drilled out also.

I had the same issue switching over. You can only get a complete bolt from SSS or from Savage and will need thextended baffle. Go to the savage web site go to the store and put in your s/n