What is push feed?

What is push feed? Push feed and controlled feed (or controlled round feed) are two main types of mechanisms used in firearms to describe how the bolt drives the cartridge into the chamber and extracts the spent casing after firing. What is push feed vs controlled feed? The biggest advantage Read more…

What material is 817M40?

What material is 817M40? tensile alloy steel 817M40 is a high tensile alloy steel, usually supplied in the heat treated T condition, although several heat treatments are available with specification limitations on size. The steel exhibits good shock and wear resisting properties. Main uses include gears, bolts and studs, shafts Read more…