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米勒精确武器公司是一家专业生产高精度中小口径狙击步枪的公司,其产品全部都基于AR系步枪结构。MPA300“保护者”半自动狙击步枪发射0.300英寸温彻斯特-马格努姆弹(7.62×67m m)。由于该型枪弹较长,因此从外观上看,弹匣比常见的AR系步枪宽。该枪枪管长559m m,采用不锈钢制成,上、下机匣及护手采用航空铝制成,配用麦格普PRS枪托,机匣顶部及护手四周均设有皮卡汀尼导轨,其中,护手顶部的导轨较长,两侧及下方的导轨较短。
Miller precision weapons company is a company specializing in the production of high-precision small and medium caliber sniper rifles, and its products are all based on AR series rifle structure. MPA300 “Protector ” semi-automatic sniper rifle fired 0.300-inch Winchester-Magnum bullet (7.62 × 67m m). Due to the longer type of bullet, the magazines are wider in appearance than the usual AR-series rifles. The gun barrel length 559m m, made of stainless steel, the upper and lower casing and hand guard made of aluminum, equipped with Meg prime PRS butt, the casing top and armor are equipped with picatinny rail Among them, the guard at the top of the guide rail longer, both sides and below the guide rail is shorter.