威尔逊SBR战术步枪基于AR系通用下机匣研制而成,采用短枪管,枪托可伸缩,属卡宾枪。不过与美国市场常见的M16/M4卡宾枪不同,其上机匣、护手并未采用一体式设计,而是护手通过延长套箍安装在枪管尾部。其延长套箍通过螺纹连接在枪管尾部,护手通过螺钉安装在延长套箍上。护手上设有密集的螺钉孔,通过这些螺钉孔,除在护手上、下、左、右四侧安装皮卡汀尼导轨外,还可在左上、 Wilson SBR tactical rifle based on the AR system developed under the general receiver, the use of short barrel, butt retractable, a carbine. However, unlike the M16 / M4 carbines commonly found on the US market, the upper case and armor are not integrated, but the hand guard is attached to the rear of the barrel by extending the ferrule. The extension cuff is screwed to the rear of the barrel and the hand guard is mounted on the extension cuff by screws. There are dense hand-held screw holes, through these screw holes, in addition to the hand guard, under, left and right sides to install Picatinny rail, but also in the upper left,