Moreover, the foundation bolt's design also considers the stability and alignment of the cartridge in the chamber. A precisely engineered bolt ensures that each round is fed smoothly, providing consistent performance in rapid-fire scenarios. The interplay between the bolt and the gas system is another critical aspect of the M16's design. The gas piston system harnesses the energy created when the rifle is fired, cycling the bolt backward to eject the spent casing and chamber a new round. This gas operation is not only efficient but also significantly reduces recoil, making the M16 easier to control and more accurate in the hands of its shooter.

4. Durability Made from materials such as stainless steel, zinc-plated steel, or other corrosion-resistant materials, expandable anchors are designed to withstand environmental factors. This durability ensures that they maintain their integrity over time, even in harsh conditions, making them a long-term solution for anchoring needs.