该枪是美国ATI公司推出的HD16系列步枪之最新款。该枪机匣顶部和护手上方设有整段皮卡汀尼导轨,用于串装瞄准镜及夜视镜;枪上的导轨更薄,并取消了护手上其他部位不必要的导轨设计,仅在护手前端的左、右及下方设有三段短导轨,以减小全枪质量;不过,为扩展使用功能,护手上留下了很多导轨安装孔, The gun is the latest version of the HD16 series rifle from American company ATI. The top of the gun casing and hand guard above the entire Picatinny rail for string sight and night vision goggles; guide rails thinner, and canceled the other parts of the hand guard rail design unnecessary, Only three short rails at the left, right, and bottom of the front of the hand guard reduce the overall gun quality; however, a lot of rail mounting holes are left on the hand guard for extended use,