上世纪80年代初，中国军队开始换装新锐的81式步枪，这是一种性能优良的武器，精度好、动作可靠、操作维护简便，在对越作战中表现出色，其配套的刺刀就是著名的81式刺刀。

81式刺刀比较特殊，外型上看像双刃匕首，但实际上不开刃，只能刺不能砍，是刀式刺刀和钉式刺刀两者的结合体。

研制81式步枪的时候，中国已经确定未来重点发展5.8mm口径的小口径自动步枪，所以只是一种过渡型武器。只是没想到，一切从简反而造出了30年来中国军人最喜欢的步枪，连卡拉什尼科夫本人打过了都说好，无心插柳却成经典。

当时主流的军用步枪刺刀都要求多功能性，比如苏联的AKM刺刀、美国的M9刺刀，除了拼刺、格斗最起码还要能剪带电铁丝、开罐、锯东西等。

但是81式刺刀是本着一切从简的原则设计的，81步枪都不知道能用几年，一把刺刀上枪能拼刺，下枪能当匕首就够了。

81军刺全长34厘米，刀锋长22厘米，刀柄长12厘米，刃厚0.5厘米，刃宽2.8厘米，全重220克。

刀体材质为440优质不锈钢，硬度58HRC，刚性好，拼刺时不易弯曲，表面镀铬，防锈防腐蚀也增硬度、锋利度。

刀刃整体为剑形，双侧都不开刃，因此没有切割功能。它的刀板比较厚而且呈十字形，在刀身两面各有两条又宽又深的血槽，让人不寒而栗。

81式刺刀单说穿刺杀伤力明显比AKM和M9要强得多，81式步枪装上81军刺长度1105 mm，也有很大的优势。

刀柄是电木材质，一般为褐色，电木学名酚醛树脂，具有较高的机械强度、良好的绝缘性，耐热性、耐腐蚀性，缺点是用久了容易发脆易碎。

与步枪的结合装置为枪口套环和刀柄尾部的T型卡槽，都是钢制，结实耐用。

刀鞘为绿色塑料材质，刀鞘口有不锈钢制的卡扣，底部开有一个泄水孔防止积水。这个颜色很特别，但是和褐色的刀柄不配，不好看。

刀鞘一侧有皮革制的固定环和腰带挂环，固定环上有带五星的按扣。

前线的战士对于81式步枪很满意，对于81式刺刀就不太满意了。

作为步枪刺刀可以胜任，穿刺力度大，可以轻松刺入人体，创口大放血快。拿在手里当匕首也还凑活，格斗的时候猛扎猛捅威力大还不弯折不易损坏。但是需要切割东西，开瓶、开罐头就不好用了。

在1984年的国庆大阅兵上，81式步枪和81式刺刀首次在全国人民面前亮相，那一次阅兵的部队多是参加过对越自卫反击战、两山轮战的，上过战场气场不一样，整个阅兵杀气腾腾！非常震撼！

81式步枪在2000年以后逐渐被95式无托步枪取代，只在一些环境比较恶劣的地方保留，现在更先进的191来了，81估计在5年内就会全部退出解放军现役。

目前全世界有20多个国家仍在使用81枪族，国内外数量巨大，购买到正品的难度不大，喜欢的可以收藏。

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