In this ASMR by Toronto Airsoft, they feature the VFC M18 GBB pistol which is sold under the SIG Air ProForce brand and is a compact version of the M17. The SIG AIR Proforce M18 green gas airsoft pistol is a faithful replica of the SIG Sauer M18 edition, with satisfying recoil and the option to increase felt recoil with a Co2 magazine. It is compatible with SIG AIR Proforce M17 magazines and is optics ready, allowing for the direct mounting of SIG AIR Reflex Sight or RMR style micro red-dot sights with an adaptor. The pistol features a VFC patented Guide-hop hop-up adjustment system, adjustable with a provided tool or by locking the slide back.