The one-piece, solid, brass, roller-bearing greasing tool from BMG Repair is an answer for those looking to properly maintain the M14/M1A action and, more specifically, the roller bearing attached to the bolt’s right locking lug. After removing the bolt from the action, fill the cupped area of the knurled brass tool with manufacturer-suggested lubricant and then simply press the bolt’s roller bearing into the grease-filled recess. Price: $15. Contact: Big Mike’s Armory & Repair; (260) 417-2885; bmgrepair.com.