关于你润滑的问题：
5.4.6 Apply a light coat of lubrication to the interior of the Upper Receiver, Buffer
Spring and Ejection Port Cover detent.
5.4.7 Apply point lubrication to the Extractor, Bolt Cam Pin, Hammer pivot point,
Trigger pivot point and Charging Handle Latch.
NOTE: Do NOT lubricate the face of the bolt.
发表于 2014-9-17 13:14