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This is a raised tactical sight for the Elite Force PPQ. It gives a more aggressive look. The polymer versions are pre-threaded for the retaining screw. If you order a Metal one, you will need to clean up the screw threads with a M2.5 x 0.45 pitch tap. The threading is already designed into the part but the 3d process makes them not as clean with the Metal parts. The part needs to be paired with one of the other styles of PPQ rear sights for a complete set. So, mix and match! Create something unique for your PPQ airsoft replica.
This cannot be made to work with real firearms. It is made for airsoft use only.