The Welrod takes the form of a cylinder, about long. The rear section of the cylinder contains the bolt, the middle section, the vented (16-20 ports) barrel and expansion chamber for the barrel, and the front section, the baffles (rubber) and wipes of the suppressor. There is a knurled knob at the rear that serves as the bolt handle, which unlocks when rotated 90 degrees. The magazine is also the grip and can be removed for easier conceal-ability. The exclusion of a pistol grip was apparently done to help conceal the weapon's purpose and in some groups it was called a "bicycle pump" due to its innocuous look with the magazine/grip removed.