M4A1 Lower Marking Receiver

The U.S. Army is seeking a single‑source small‑business contractor to supply M4A1 lower receivers that are marked per Army specifications. The contract will be a five‑year Indefinite‑Delivery Indefinite‑Quantity (IDIQ) firm‑fixed‑price award with a guaranteed minimum quantity of 726 units and a maximum ceiling of 21,638 units. The award is a 100 % small‑business set‑aside and requires delivery of a First‑Article Test (FAT) package, compliance with MIL‑STD‑2073‑1 and MIL‑STD‑129 packaging, a heavy‑phosphate coating per MIL‑DTL‑16232, and adherence to OPSEC, CUI, and export‑control regulations. Offers are evaluated primarily on delivery schedule, with price as a secondary factor.