Endless fun and confusion! As a bit of a guide, this is what you would need if you want to couple a compressor with 1/4” male thread to a spray gun using quick release fittings:

• Mount a “snap female body” onto the compressor.
• Put a “snap male adapter” into one end of the hose.
• The hose will now snap onto the compressor.
• Put a “snap male body” onto the other end of the hose .
• Put a “snap female adapter” onto the gun.
• The gun will now snap onto the hose.

Easy peasy! So to simplify things just order the four items in bold.