Possible Clues:

• Knives fixed to rifles
• Rifle attachments
• Daggers fixed to rifles
• Rifles with knives
• Violently sticks egg inside cuckoo nest on tree
• Bony seat (anag.)
• Sticking weapons in horse set on running
• Clubs that leader in east's introduced as weapons
• Set on by a group armed thus!
• Weapons that need to be fixed?