Kross Airsoft Design — UK-designed carbine kits and HPA adapters that turn a pistol into a compact SMG. A direct-supplier brand we stock in depth, built around the MK23, AAP-01 and Hi-Capa platforms.

Kross specialise in the conversion parts that give a gas or HPA pistol a stock, a longer sight line and a far more controllable shooting platform. Their MK23 carbine kits — EM2, VSS and Slimline — and the AAP-01 kit are the centrepieces, backed by HPA magazine adapters, drum magazines and machined pistol upgrade parts. It is a design-led range for players building something specific rather than buying off the shelf.

What we stock

We carry the MK23 EM2, VSS and Slimline carbine kits, the AAP-01 carbine kit, MK23 HPA drum magazines and angled Hi-Capa HPA M4 adapters.

💡 Titan Forge Airsoft tip: A carbine kit changes how a pistol-calibre gun handles entirely — pair one with an HPA adapter to feed it from your tank. See our HPA pistol adaptors.