Marine Fighter Attack Squadron 121 (VMFA-121), also known as the "Green Knights", is a USMC all-weather (hence the 'AW') aircraft squadron currently operating the F-35B Lightning II. The squadron is based at MCAS Iwakuni, Japan and falls under the command of Marine Aircraft Group 12 (MAG-12) and the 1st Marine Aircraft Wing (1st MAW). Their tail code is VK and their radio call sign is "Combat". The lineage/history of this squadron is extensive, from WWII to current day, transitioning from VMF-to-VMA-to-VMFA. This is the black/green version of the squadron patch (with 2-Tabs) worn by the squadron when they flew the venerable A-6 Intruder. This patch does not come with velcro attached!!

This is a "hand-made" reproduction of the round color version of the squadron patch for USMC ATTACK SQUADRON (All Weather) 121. It has a dark green border and Knight.

This is a "hand-made" reproduction of the color version of the squadron's rectangular patch for USMC ATTACK SQUADRON (All Weather) 121. It has a yellow border and dark green Knight.

This is the "ballcap patch" that is seen on the front of the ballcaps. It is JUST the patch, and does not have velcro attached so that you can "melt" it onto whatever article of clothing you want.