H21006 Hyper 21 4 Port Piston Liner Answer .
\nStevens guns were made at the plant in Chicopee Falls, Mass. DJI iOSD OSD Mini On Screen Display NAZA M V2 RC Racing Drone Hexacopter1ECD High Performance 2.4GHz 360degree Rolling Helicopter Aircraft FlyingCEN Piston and Cylinder - NX-15L X-CENG70364-08. No Stevens firearms were manufactured from 1916 until 1920 when Savage Arms purchased the facilities and name. From 1920 until 1942 (or '48) Savage marked guns J. STEVENS ARMS CO and after that simply STEVENS or STEVENS/SAVAGE. The Stevens name was discontinued in 1991. ( Full Answer )