Maxim M/09-21
              < Maxim M 
          | Maxim M/09-21 | |
|---|---|
| A Maxim M/09-21 heavy machine gun in use during the Continuation war. | |
| Type | Heavy machine gun | 
| Service history | |
| In service | 1921–? | 
| Used by | Finland | 
| Wars | World War II | 
| Specifications | |
| Mass | 51.6 kg (with tripod) 24 kg (without tripod) | 
| Length | 1110 mm | 
| Cartridge | 7.62×54mmR | 
| Action | Recoil operated | 
| Rate of fire | 600 rpm | 
| Feed system | 250 round fabric belt or 200 round metallic belt | 
The Maxim M/09-21 is a Maxim machine gun variant made by Finland and used by the Finnish army during World War II.