Here's some sample text from the bid:
The scope of this contract is to provide a total of up to 7,000 5.56x45mm North Atlantic Treaty Organization (NATO) personal defense weapons (PDW) throughout the life of this contract to numerous Department of Homeland Security components. This Statement of Work delineates performance criteria and testing to be used for the evaluation of the firearm.
3.9.1. The firearm shall be able to be operated by a left or right-handed user without permanent modification.
3. 9.2 The action shall be select-fire (capable of semi-automatic and automatic fire).
3.9.10 The action shall be capable of accepting all standard NATO STANAG 20 and 30 round M16 magazines (NSN 1005-00-921-5004) and Magpul 30 round PMAG (NSN 1005-01-576-5159). The magazine well shall be designed to allow easy insertion of a magazine.