FMA FBUS Gen3 Iron Sights – Black

The FMA FBUS Gen3 iron sights are a trusted choice for airsoft skirmishers seeking dependable secondary aiming when optics fail or sights are obscured. Their compact form factor and rock-solid Picatinny grip make them an ideal backup for both CQB and mid-range engagements.

Key Features

• 20mm Picatinny mounting – secure fit on any standard rail system
• Windage & elevation adjustment – fine-tune your zero for accuracy
• Lightweight polymer construction – minimal impact on rifle balance
• Compact profile – doesn’t obstruct primary optics when folded
• Included adjustment tool – quick, tool-free height tuning

Real-World Use Cases

FMA FBUS sights excel in dynamic skirmish environments where rapid target acquisition matters. Deploy them as a backup when your scope fogs, gets knocked off, or you need faster sight-picture acquisition in tight CQB corridors. They’re equally at home on DMR setups as a precision secondary aiming system.

Technical Specifications

• Mounting: 20mm Picatinny rail
• Colour: Black
• Adjustment: Windage & elevation tunable
• Material: Polymer
• Package: Sights + adjustment tool

Compatibility & Upgrades

These sights fit any AEG, sniper rifle, or GBB pistol with a 20mm Picatinny rail. Pair them with reflex sights, magnified scopes, or laser modules for a fully redundant aiming setup. Works seamlessly alongside rail-mounted lights and magnifiers.

UK Legal & Site Notes

FMA FBUS sights are entirely legal to own and use on any UK airsoft site. Check your local skirmish rules—most events welcome iron sights for all engagement distances. No power source, batteries, or age restrictions apply.

Get your FMA FBUS Gen3 sights from Airsoftdirect today. Reliable, affordable backup iron sights that keep your rifle fighting when everything else fails. In stock and ready to ship.