Shenzhen Alu Rapid Prototype Precision Co., Ltd.

No, not all gun parts are made out of cast metal—firearms incorporate a variety of manufacturing techniques depending on the part, material, and design requirements. However, casting is a common method for producing certain components, especially those made from metals like aluminum or steel alloys, due to its ability to create complex shapes efficiently and with good strength.

Common Manufacturing Methods for Gun Parts

Here's a breakdown of key methods, including casting, based on standard firearm production practices:

Why Casting is Used (and Its Limitations)

Advantages: It's ideal for lightweight, complex parts (e.g., aluminum die casting reduces weight for easier handling) and produces durable components with minimal waste. 

Limitations: Cast parts can have porosity or weaker spots compared to forged ones, so critical high-stress components (like barrels) are rarely purely cast—they're often forged or machined from bar stock.

Prevalence: While not universal, casting accounts for a significant portion of non-critical metal parts in both commercial and military firearms.