Kross Airsoft Design Vorsk VMP-1 HPA Adapter

Vorsk's VMP-1 is the often-overlooked sibling in the gas SMG world — punchy, distinctive, and absolutely capable on the field, but harder to find aftermarket support for than the bigger-name platforms. KAD's HPA adapter for the VMP-1 fills exactly that gap, taking the gun from gas-dependent to constant-pressure HPA.

Two variants depending on your existing magazine pool. M4 fitment is the common choice for skirmishers who already run M4 mags on a primary AEG or HPA platform. MP5 fitment is the natural choice if your other guns already use MP5 sticks, or if you prefer how MP5 mags handle on the VMP-1's compact frame.

What changes when a gas SMG goes HPA

In its stock gas configuration the Vorsk VMP-1 is a fun gun, but its cycle rate falls off fast in cold weather and its mag capacity is the usual gas-mag low. Switch to HPA and the cycle rate becomes constant year-round, the trigger response sharpens (no waiting for gas to recharge between bursts), and you're feeding from full-size magazines instead of the stock gas stick. It transforms what the gun is for — from a stylish gas plinker to a viable skirmish primary.