J. Stevens Arms Co. began phasing out the G.S. Lewis striker fired guns in 1936 when the J. Stevens No. 330 and the Springfield No. 315 were replaced with the hammer rotating about an axle (marked 5000 or 5100) J. Stevens No. 530 and the Springfield No. 515. The G.S. Lewis striker fired Springfield No. 311 and numerous "trade branded" guns on that action continued to be made up to WW-II. For 1939, Savage took the internal parts of the J. Stevens No. 530 and put them in a bit nicer profiled and decorated black gun metal finished frame, with a bit nicer stock and introduced it as the Fox Model B. For 1940, J. Stevens Arms Co. added the Tenite (plastic) stocked version of the No. 530 to their line and called it the No. 530 M. By 1947, Savage Arms Corp. consolidated their arms making at the J. Stevens factories in Chicopee Falls, Mass. and the gun that had been the J. Stevens No. 530 M was cataloged as the Springfield No. 311. By the 1948 Savage/Stevens/Fox catalog the Tenite stocked gun was called the Stevens Model 311. By the 1951 Savage/Stevens/Fox catalog the Stevens Model 311 got a walnut finished wood stock and forearm. For a few years Savage continued to offer essentially the same double in three levels of finish -- Stevens Model 311 & Model 530 and the Fox Model B. By the mid-1950s the Stevens Model 530, the gun that started the family, was dropped and they continued on to the 1980s with the Stevens Model 311 and the Fox Model B in a number of varistions.