Showing 50 of 114 firearms starting with "I"
| Name | Manufacturer | Caliber | Type |
|---|---|---|---|
| IZh-5 | - | - | Izhmekh Single Barreled Shotgun Series |
| IZh-53 | - | - | Air Guns |
| IZh-77 | - | - | Margolin MCM |
| IZh-79-9T Makarych | - | - | Makarov PM |
| IZh-K | - | - | Izhmekh Single Barreled Shotgun Series |
| IZh-SPL | - | - | Blank Fire Only Guns |
| Imbel IA2 CQC carbine | - | - | FN FAL |
| Improvised Flamethrower | - | - | - |
| Improvised Grenade | - | - | - |
| Improvised land mine | - | - | - |
| Incendiary grenades | - | - | - |
| Incenerator 'Flamer' | - | - | - |
| Incinerator 'Flamer' | - | - | - |
| Infantry Musket M1845 | - | - | - |
| Infinity Tiki-T | - | - | M1911 pistol series |
| Inglis Hi-Power | - | - | Browning Hi-Power |
| Ingram MAC 11 | - | - | MAC 10 |
| Ingram MAC-10 | - | - | MAC-10 |
| Ingram MAC-11 | - | - | MAC-10 |
| Ingram Machine Pistol Non Gun | - | - | Non Guns |
| Injection Pistol | - | - | - |
| Inland M1 Scout Carbine | - | - | M1 Carbine |
| Interdynamic KG-9 | - | - | Interdynamic KG-9 / Intratec TEC-9 |
| Interdynamic KG-99 | - | - | Interdynamic KG-9 / Intratec TEC-9 |
| Interdynamic MP9 | - | - | Interdynamic KG-9 / Intratec TEC-9 |
| International Ordnance MP2 | - | - | - |
| Interstate Arms 372 | - | - | Hawk shotgun series |
| Intratec CAT 9 | - | - | Intratec CAT Series of Pistols |
| Intratec CAT-9 | - | - | Intratec CAT Series of Pistols |
| Intratec TEC-22 | - | - | - |
| Intratec TEC-38 | - | - | - |
| Intratec TEC-9 | - | - | Interdynamic KG-9 / Intratec TEC-9 |
| Intratec TEC-9 Mini | - | - | Interdynamic KG-9 / Intratec TEC-9 |
| Intratec TEC-9 mini | - | - | Interdynamic KG-9 / Intratec TEC-9 |
| Intratec TEC-DC9 | - | - | Interdynamic KG-9 / Intratec TEC-9 |
| Israeli FALO Heavy Barrel | - | - | FN FAL |
| Ithaca 37 | - | - | - |
| Ithaca 37 "Stakeout" | - | - | Ithaca 37 |
| Ithaca 37 Stakeout | - | - | Ithaca 37 |
| Ithaca Auto & Burglar | - | - | - |
| Ithaca Model 37 | - | - | Ithaca 37 |
| Iver Johnson .380 | - | - | Star 1911 Series |
| Iver Johnson AMAC-1500 | - | - | - |
| Iver Johnson American Bulldog | - | - | Iver Johnson Revolver |
| Iver Johnson Bulldog | - | - | Iver Johnson Revolver |
| Iver Johnson Eclipse Derringer | - | - | - |
| Iver Johnson Enforcer | - | - | M1 Carbine |
| Iver Johnson Enforcer Pistol | - | - | M1 Carbine |
| Iver Johnson Enforcer pistol | - | - | M1 Carbine |
| Iver Johnson Model 55 | - | - | Iver Johnson Revolver |