Air Arms Regulator Setting Up & Testing Workshop Tool. S400 to S510, Made in UK.
Professional Airgun Regulator Parts & Kits. Air Arms - Regulators - Spares & Accessories. (All with bottom 1/8" BSP Gauge Port). Exporting to 170 Countries (July 2024). No Gauge - Has 1/4"BSP Compression Fitting, to install your own gauge.