Specifications - Mk 12 Special Purpose Rifle
Summary
The United States Navy Mark 12 Mod 0/1 Special Purpose Rifle (SPR) is a semi-automatic designated marksman rifle that was in service with United States Special Operations Forces in the designated marksman role until 2017, also designed to be shorter than standard weapons. SPR initially stood for Special Purpose Receiver, but that nomenclature has been replaced as the weapon became a stand-alone weapons system, and not just an add-on upper receiver assembly (part of the proposed SOPMOD upgrades).
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Personal Arms
| Weapon System | semi-automatic designated marksman rifle | |
| Caliber | 5.56×45mm NATO | |
| Rate of fire | Semi-automatic | |
| Effective firing range | 700 metres (770 yd) | |
| Feed system | 20- or 30-round STANAG magazine |