This opportunity is for procurement of up to 12 F-16 Landing Gear Actuating Cylinders (NSN 1650014211187, Part Number 1211179-216-2), supporting both Foreign Military Sales and USAF domestic needs. Offerors must provide firm-fixed pricing for two potential award structures: Structure A includes an immediate buy of 2 units plus an option for 10, while Structure B is a consolidated immediate buy of all 12 units as funded line items. The government may award under either structure depending on funding availability. The intended award is sole source to OEM Arkwin Industries (CAGE 98391) or an authorized vendor, but all responsible sources may submit a capability statement for consideration. This is a specific parts procurement opportunity for authorized suppliers of this actuating cylinder.