If you’re looking for an AR-9 platform with a lightweight build and programmable fire controls, allow us to introduce you to the Specna Arms SA-FX01 FLEX™ HAL¹ ETU AR-9 AEG. Following in the footsteps of the impressive original FX01 and X-ASR-equipped version, this version is rocking Specna’s HAL¹ ETU, offering programmable fire controls and several quality-of-life functions built in, all for barely more money than the original!

The HAL¹ is ready to go toe to toe with other modern MOSFETs, allowing you to select binary trigger, AUG mode, and sniper delay instead of semi-auto and semi-auto lock, 3-round burst or 5-round burst instead of full auto. Also available are 5 levels of trigger sensitivity adjustment, 6 levels of adjustable pre-cocking, active braking, and a low battery voltage alarm. Like the original SA-FX01, the HAL¹ equipped version also has a 6.03mm tightbore inner barrel, giving it above-average accuracy potential and a slight raise in FPS from the same strength spring.