Winchester 72/22 bolt assembly needed

[BunkerKing]

rifle was handed down from my grandfather and is in excellent condition, he use to hide the bolt when I was young for added safety, hes really old now and cant remember much. so ive searched his house top to bottom with no luck. ive tried searching online but no luck..

 

[JDH146]

http://www.gunbroker.com/Auction/ViewItem.aspx?Item=310723725
http://www.gunbroker.com/Auction/ViewItem.aspx?Item=311130902