枪托

枪托是战术半自动步枪的关键结构部件，容纳机匣和枪管组件，为射手的肩部和脸颊提供稳定平台，并常包含人体工程学特征以改善操控。它是射手与枪械之间的主要接口，在快速射击序列中传递后坐力至身体，同时保持瞄准线和控制。

枪托作为机械接口，将射击力从枪械传递至射手身体，同时保持稳定性和对准。它提供瞄准控制的杠杆作用，通过材料变形和设计几何形状吸收后坐能量，并将射手眼睛定位至瞄准具或光学器件。现代战术枪托常包含可调节特征，以适应不同体型、射击姿势和设备配置。

The stock functions as a mechanical interface that transfers firing forces from the firearm to the shooter's body while maintaining stability and alignment. It provides leverage for aiming control, absorbs recoil energy through material deformation and design geometry, and positions the shooter's eye relative to the sights or optics. Modern tactical stocks often incorporate adjustable features to accommodate different body sizes, shooting positions, and equipment configurations.