New to the forum. Looking to buy the Griffin tactical (long shot I know.) Charging handle (or broken charging handle to weld and machine into similar)

I'm also looking for:
556/551 recoil rod w/spring
Firing pin, firing pin spring
Troy or Samson Railed handguards
Sig Spare parts kits (non patrol)
Rubber weather stripping

I do have PLENTY of lower receiver (swiss) parts so I might part with those.