| Sec. IVNFA · Registered only | C&R · IV · 175 | MG FF & MG FF/M aircraft cannon | Ikaria-Werke & others (Oerlikon licence) | Germany | 1936–1945 |
| Sec. IIIEx-NFA · C&R · GCA | C&R · III · 220 | PIAT (Projector, Infantry, Anti-tank) | Imperial Chemical Industries | United Kingdom | 1942–1945 |
| Sec. IVNFA · Registered only | C&R · IV · 158 | Type 99 light machinegun, Paratrooper Model | Imperial Japanese Army arsenals | Japan | 1939–1945 |
| Sec. IIC&R · GCA | C&R · II · 553 | M1 Carbine, Irwin-Pedersen | Irwin-Pedersen Arms Co., Grand Rapids, MI | United States | 1942–1943 |
| Sec. IVNFA · Registered only | C&R · IV · 126 | Scotti machineguns, all models | Isotta Fraschini (Alfredo Scotti designs) | Italy | Before 1946 |
| Sec. IIC&R · GCA | C&R · II · 575 | Uzi Model A carbine, satin nickel | Israel Military Industries | Israel | 1980–1983 |
| Sec. IIC&R · GCA | C&R · II · 323 | Ithaca Model 37 Bicentennial | Ithaca Gun Co. | United States | 1976 |
| Sec. IIC&R · GCA | C&R · II · 325 | Ithaca Model 49, St. Louis Bicentennial | Ithaca Gun Co. | United States | 1964 |
| Sec. IIIUntil Apr 2018 | C&R · III · 063 | Ithaca Auto & Burglar Model BNot in 2025 list | Ithaca Gun Co. | United States | 1925–1934 |
| Sec. IVNFA · Registered only | C&R · IV · 128 | Ithaca Auto & Burglar | Ithaca Gun Co. | United States | 1921–1934 |
| Sec. IIC&R · GCA | C&R · II · 324 | Ithaca double-barrel shotguns, before 1950 | Ithaca Gun Co., Ithaca, NY | United States | Before 1950 |
| Sec. IIC&R · GCA | C&R · II · 326 | Ithaca single-barrel trap guns, before 1950 | Ithaca Gun Co., Ithaca, NY | United States | Before 1950 |
| Sec. IIC&R · GCA | C&R · II · 327 | Iver Johnson M1 Carbine, Airborne Commemorative | Iver Johnson Arms | United States | 1978–1993 |
| Sec. IIC&R · GCA | C&R · II · 328 | Iver Johnson M1 Carbine, Korean War Commemorative | Iver Johnson Arms | United States | 1978–1993 |
| Sec. IIC&R · GCA | C&R · II · 329 | Iver Johnson U.S. Border Patrol 60th Anniversary pistol | Iver Johnson Arms | United States | 1984 |
| Sec. IIC&R · GCA | C&R · II · 330 | Iver Johnson M1 Carbine, World War II Commemorative | Iver Johnson Arms | United States | 1978–1993 |
| Sec. IIIEx-NFA · C&R · GCA | C&R · III · 064 | Iver Johnson cut-away shotgun | Iver Johnson’s Arms & Cycle Works | United States | 1894–1975 |
| Sec. IVNFA · Registered only | C&R · IV · 193 | Simonov AVS-36 | Izhevsk Arsenal | Russia (U.S.S.R.) | 1934–1940 |
| Sec. IIC&R · GCA | C&R · II · 453 | Dragunov SVD, Soviet issue | Izhevsk Machine-Building Plant (Izhmash) | Russia (U.S.S.R.) | 1963–1991 |
| Sec. IIC&R · GCA | C&R · II · 463 | Tokarev TT R-3 training pistol | Izhevsk Mechanical Plant (State Mechanical Plant No. 622) | Russia (U.S.S.R.) | 1945–1959 |
| Sec. IIC&R · GCA | C&R · II · 464 | Tokarev TT R-4 target pistol | Izhevsk Mechanical Plant (State Mechanical Plant No. 622) | Russia (U.S.S.R.) | 1945–1959 |
| Sec. IIC&R · GCA | C&R · II · 350 | Makarov pistol, Soviet & East German | Izhevsk; Ernst Thälmann Werk (E. Germany) | Russia (U.S.S.R.) | 1951–1990 |