Slide (made of aluminum cut out)
Meprolight type front / rear sight (steel)
Silencer for outer barrel （ 14 mm positive screw, aluminum made ）
Extractor (made of steel cut out)
Inner stopper (made of steel cut out)
Inner stopper is a portion of the affected slide stop plate.
Comes with inner stopper machined steel for the better, and corrupted and hard to become.
* Note * If adjustment is required because custom parts.
Decomposition techniques are required.
In the second photo is a sample embedded. Gun not included.