The small parts that make an HPA setup actually work in the field. Fittings, gauges, line clips, quick-disconnects, fill stations, and the spares that mean a snapped fitting doesn't end your game day.

An HPA setup looks complete once you have a rifle, tank, regulator, and line — and it is, on paper. In practice, the accessories on this page are what stop the setup falling apart in normal use. Line clips keep your air line tucked along your rig instead of swinging into trees. Quick-disconnect fittings let you swap between rifle and pistol or change tanks in seconds. Pressure gauges in line tell you what's actually reaching your engine versus what the regulator is set to. Fill nipples and remote fill stations let you top up at the chrono station between games.

Common purchases from this page: replacement O-rings for tank threads and regulator outlets (these wear out and they're the cheapest failure point to keep spares of), fill nipple covers to keep grit out of your tank fill port, male/female QD fittings to convert macroline systems to quick-disconnect, line gauges for diagnostics, and PTFE tape for sealing thread joints when you reassemble. Most are under £15 and most have saved someone's game day at some point.

If you're not sure what specific accessory your setup needs, the HPA tech service can diagnose at the workshop. For the larger components in the HPA stack, see tanks, regulators, lines, and engines.

💡 Titan Forge tip: Build a small HPA spares kit and keep it in your gear bag — O-rings, PTFE tape, a spare fill nipple, an Allen key set, and a multi-tool. £20 of kit that turns a game-ending leak into a 90-second fix between games.