【本文由小黑盒作者@ruiqi112于01月11日发布，未经许可不得转载！】 消音版 M4A1 相对于它那没有消音器的同行来说弹匣更小，枪声也较为“沉默”，还拥有更小的后坐力和更高的精准度。 ----------------------------- ...

The M4A1 rifle, which uses 5.56x45 mm NATO ammunition, is often compared to its civilian version, known as the AR-15. It is characterized mainly by a 37 cm barrel, although 41 cm barrels are also ...