2024年8月17日 · An A4 gun in the US military, in its most common and significant usage, refers to the M61A1/A2 Vulcan 20mm Gatling gun, primarily associated with fighter aircraft. Specifically, the “A4” designation often denotes improvements and modifications applied to the core Vulcan design, commonly found in aircraft like the F/A-18 Hornet and F/A-18E/F ...

The latest update from HK-USA to the commercial variant of the legendary HK416, the MR556 A4 represents an enhanced example of “no compromise” HK performance. Chambered in 5.56 x 45mm, its short-stroke gas piston operating system does not impart hot carbon fouling back into the action, allowing the weapon to…

A-4攻击机（英语：Douglas A-4 Skyhawk，绰号：“天鹰”），是20世纪50年代初期美国 道格拉斯公司 研制的一型 攻击机，原型机为A4D，最初被设计用来做为 美国海军航空母舰 的舰载机。 该机于1954年首次飞行，曾在 越南战争 中扮演着关键的角色，亦参加过 马岛战争 、 赎罪日战争，世界各地仅剩数百架左右的A-4攻击机在服役。 A-4攻击机是美国海军及其陆战队装备的一种单座舰载型攻击机，共有17个型别。 主要用于对海上和沿岸目标进行常规轰炸，执行近距支援和浅纵 …

2024年11月23日 · Building on its existing commercial line of MR556 and MR762 rifles, HK USA now offers A4 versions of both rifles, as well as large-format pistol variants.

The HK MR556 A4 represents the pinnacle of precision engineering and tactical performance. Designed for uncompromising accuracy, durability, and reliability, this semi-automatic pistol is a civilian variation of the legendary HK416, trusted by military forces worldwide.

As the world’s most popular rifle, the MR556 A4 is supported by an aftermarket loaded with lots of great accessories, from rails and handguards all the way up to everything you need to make your own legally-registered short-barreled rifle*.

Fully ambidextrous controls, lighter weight and a slimmer profile make the new A4 easier to operate, manipulate and employ. 7.67 LBS. The latest update from HK-USA to the commercial variant of...

Fully ambidextrous controls, lighter weight and a slimmer profile make the new A4 easier to operate, manipulate and employ. For those who demand an AR with unmatched capability and uncompromising reliability and durability, the MR A4s remain the top tier solution. Features. Was the information on this page helpful?

2024年11月19日 · With the German firearms icon increasingly sowing its American oats in Georgia, HK USA has a trio of new A4 series guns headed to market in December. These updated MR556 A4 and MR762 A4...