Mach Sakai's KSC Beretta APX GBB Pistol Review
OptimusPrime
08 Jun 2026
Mach Sakai takes a good look at the KSC Beretta APX gas blowback airsoft pistol, a replica of the striker-fired service pistol. This model, priced at approximately 34,980 yen, features a 16mm large-bore piston designed to enhance recoil and cycling performance. The firearm includes an optic-ready slide with three different adapter plates to accommodate various red dot sights, such as the Tokyo Scope XT-6, though specific screw lengths may vary by optic.
He goes over the features of the APX such as the metal slide and a polymer frame, weighing 696g with a 22-round magazine. It utilizes a redesigned hop-up system that is adjustable via a dial located at the base of the inner barrel, accessible after removing the slide. The external design includes a wide trigger with a functional safety, an ambidextrous slide stop, and a reversible magazine catch. The grip features a non-slip texture and a contoured shape intended to provide a secure hold without the use of interchangeable backstraps.
During performance testing with 0.2g BBs at 20°C, the pistol recorded muzzle velocities ranging from approximately 65 to 68 m/s. Practical accuracy tests showed consistent groupings at 5 meters, and the hop-up system maintained a stable trajectory at ranges up to 40 meters. The gas efficiency was measured at 0.15g per shot, allowing for roughly 83 shots per single gas charge. The slide successfully locked back on the last shot throughout the testing session.