A compact, lightweight closed coupling male spring lock fitting (10) for direct connection to an air conditioning hose having an inner sleeve (11), an outer sleeve (30) and an annular cage (20), the inner sleeve (11) has a stepped portion (16) that receives an inner surface of the annular cage (20). The annular cage (20) surrounds the outer diameter of the inner sleeve (11) and is spaced a distance from one end of the inner sleeve (11). The outer sleeve (30) abuts an outer surface of the annular cage (20) and prevents axial movement of the annular cage (20). The outer sleeve (30) is retained in a retaining groove (17) on the outer diameter of the inner sleeve (11), adjacent the stepped portion (16). The closed coupling of the outer sleeve (30) and cage portion significantly reduces the overall length and weight of the fitting (10) in comparison to prior art fittings and the inner sleeve (11) may be machined opposed to conventional tube roll-forming processes.