论文部分内容阅读
PRS Trainer狙击步枪是美国ALAMO精确步枪公司推出的一款采用旋转后拉式枪机的小口径狙击步枪,发射0.223英寸雷明顿弹。该枪采用重型比赛级枪管,枪管长610mm。枪管表面制有螺旋槽,可有效散热,枪机表面亦制有螺旋槽。其作用是便于排除沙粒,以保证枪机运动顺畅。该枪采用了MPA公司的一体式BA竞赛型铝合金护手/枪托组件。护手左右两侧制有多个散热孔,护手下方前后制有2段短导轨。枪托呈框架式,其上制有诸多孔,枪托上设有贴腮板,贴腮板高度可调,尾部的托底板亦长度可调。护手与枪管不接触,使枪管呈浮置式设计,有利于提高射击精度。机匣顶部设有一段短导轨,护手前部上方设有马鞍形导轨座,其顶部设有一段短导轨,该导轨与机匣顶部的导轨配合,可串列安装
PRS Trainer sniper rifle is the United States ALAMO precision rifle company launched a revolving pull-type bolt caliber rifle, fired 0.223 inches Remington bullet. The gun uses a heavy race-level barrel, barrel length 610mm. Barrel surface with a spiral groove, which can effectively heat, the bolt surface is also made of spiral groove. Its role is to facilitate the exclusion of sand, in order to ensure the bolt movement smooth. The gun incorporates MPA’s all-in-one BA race aluminum handgun / butt assembly. Left and right hand guard on both sides of the system has multiple vents, under the guard before and after the system has two short rails. The butt was a frame-type, with many holes on it, a cheekplate on the buttstock, an adjustable height to the cheekplate and an adjustable backrest base. No contact with the barrel handguns, the barrel was floating design, help to improve shooting accuracy. The top of the casing is provided with a short guide rail, the saddle-shaped guide rail seat is arranged above the front part of the hand guard, a short guide rail is arranged at the top of the casing, and the guide rail is matched with the guide rail at the top of the casing for serial installation