The Naval Research Laboratory in Washington, DC seeks quotations for Photon Detector Modules, brand name or equal, new equipment only, with manufacturer warranty coverage. This is a total small business set-aside (NAICS 334516, size standard 1,000) on a firm-fixed-price basis. Offerors must be OEMs or OEM-authorized dealers, distributors, or resellers and must provide manufacturer authorization documentation for the specific items. Award is intended as a purchase order using lowest-price technically acceptable evaluation, and quoters should have active SAM registration. Delivery is to NRL at 4555 Overlook Avenue SW, Washington, DC; maintenance-renewal performance periods must begin on or after award and cannot be backdated.