| M-1 Carbine |
| M-14 Accurizing |
| M-16 |
| M-60 |
| MAC 10 |
| MAC 1931 Machinegun |
| MAC 1950 Semi-Automatic Pistol |
| Magnum Research Baby Eagle |
| Magnum Research BFR |
| Magnum Research Desert Eagle |
| Makarov Bloss |
| Makerov - Century |
| Mannlicher Classic, Pro-Hunter |
| Mannlicher TMP |
| Mannlicher Ultra-Light, Scout, Elite |
| Marlin 15YN |
| Marlin 1894 Cowboy II |
| Marlin 1894, 1894C |
| Marlin 1894S |
| Marlin 336, 444, 1895 |
| Marlin 39A, 39M |
| Marlin 45 |
| Marlin 45 Carbine |
| Marlin 49, 99C, 99M1, 989M2 |
| Marlin 60, 70, 75, 99M1,989M2 |
| Marlin 70P |
| Marlin Camp 9 |
| Marlin LC Smith O/U Shotgun |
| Marlin LC Smith S/S Shotgun |
| Marlin Self-Loading Rimfire Clip Feed |
| Marlin Self-Loading Rimfire Tube Feed |
| MAS 1935 Military Pistol |
| MAS 1935 S Semi-Automatic Pistol |
| MAS G1 Automatic Pistol |
| MAT 1949 Machine Pistol |
| Mauser 1871 Rifle |
| Maverick 88, 91 |
| Merkel O/U Shotgun |
| Merkel Over-Under Shotgun |
| Merkel S/S Shotgun |
| Merkel SxS |
| MG 1942 F Machinegun |
| MGV 176 |
| Military Rifle 1886-1893 |
| Mitchell 9100 Series Shotguns |
| Mitchell Mauser 98 |
| Mitchells Mauser 98K, M48 |
| Mosin-Nagant |
| Mossberg 100ATR |
| Mossberg 500 |
| Mossberg 500, 505, 535, 590, 835 |
| Mossberg 590DA |
| Mossberg 695 |
| Mossberg 817 |
| Mossberg 9200 |
| Mossberg 930 |
| Mossberg 935 |
| Mossberg Line Launcher |
| Mossberg Maverick |
| Mossberg Muzzleloader |
| Mossberg Reserve |
| Mossberg SSi-One |
| MP 1940 Machine Pistol |
