CQB160DGB半自动步枪是LMT公司最新推出的一款近距离作战步枪。该枪采用气吹式导气系统,其导气管为直形,与常见的直弯直形导气管差别较大。该导气管隐藏在护手顶部导轨下方。其枪管长406mm,膛线导程178mm,内膛镀铬,并且采用了特殊的深冷处理工艺(-196℃低温处理),有利于消除枪管的内应力(加工过程中造成的材料组织不均匀变化而产生的内力,对零件的强度不利).提高枪 CQB160DGB semi-automatic rifle is LMT’s latest launch of a close combat rifle. The gun using air-blown air conduction system, the airway is straight, with the straight straight curved airways vary widely. The airway tube is hidden under the top guard rail. Its barrel length 406mm, rifling lead 178mm, bore chrome, and the use of a special cryogenic treatment (-196 ℃ low temperature treatment), is conducive to eliminate the barrel of the internal stress (during processing caused by uneven material changes in the organization The resulting internal forces, on the strength of the negative.) Raise the gun