: A manual for constructing a single-shot shotgun-style handgun using common plumbing parts.

: Homemade firearms are extremely dangerous; they often lack standard safety features and can explode if the materials used are not strong enough to withstand the pressure of firing. Are you researching this for historical/legal context or

: Luty's most famous work, which provides step-by-step instructions for building a simple, sheet-metal and tubing SMG.

: A variation using "British Standard Pipe" for the main receiver and components.

: In most jurisdictions, manufacturing firearms without a license is a serious criminal offense. Luty himself was imprisoned multiple times in the UK for his activities.