Possible Clues:

• Colt handler
• He makes what he sells, lock, stock and barrel
• Arms maker
• Piece maker
• Thin mugs (anag.)
• Maker of weapons
• Arms manufacturer's comfortable in retrospect with broadcast fiction
• One who profits from keeping people up in arms
• Turn cosy with story to tell, one providing musketeers?
• Browning perhaps subverting cosy oral tale