The Air Force is seeking offers for up to 12 each of the F-16 Landing Gear Actuating Cylinder (NSN 1650014211187, Part Number 1211179-216-2) to support both Foreign Military Sales and domestic USAF requirements. Offerors must provide firm-fixed pricing for two possible award structures: Structure A covers an immediate buy of 2 units plus an option for 10 units, while Structure B consolidates all 12 units into a fully funded immediate buy. The government intends to award on a sole-source basis to the OEM, Arkwin Industries, or an authorized vendor, but all responsible sources may submit a capability statement for consideration. The government reserves the right to evaluate and award under either structure depending on funding availability at the time of contract execution.