Fusion SpaceMuster

Motor-hardware compatibility for high-power rocketry

RMS-38/120

AeroTech RMS · 38 mm · up to ≈137 N·s · P/N 3812C

Beyond the case, every reload below needs the 38 mm forward closure, plus the 38 mm aft closure— reusable, and shared across every 38 mm case in the AeroTech RMS line.

Open in the interactive toolPick a reload there for its full, copyable shopping list.

Muster is a shopping aid, not an assembly guide. Build only to the reload's printed instructions — always the authority — and confirm every part with the manufacturer before you buy or fly.

Reloads built for this case (4)