MP5 PIP是尝试在MP5 基础上改变外形及内部结构的变型枪，但只有木制模型，而没有造出可供实弹试验的样枪。 MP5 PIP 拟采用自由式枪机，其拉机柄的形式取自 HK36，现在已经被G36所采用。

2016年9月26日 · What is clear is that the MP5 PIP has some interesting features, including a weaver-style top rail, a “chute” type magazine well, a centrally located button that appears to be a bolt catch/release, and a round magazine catch. Also, the MP5 PIP appears to be the origin for the distinctive “flipper” charging handle of eventually used in the G36.

The Heckler & Koch MP5 (German: Maschinenpistole 5, lit. 'Submachine gun 5') is a submachine gun developed in the 1960s by German firearms manufacturer Heckler & Koch.

2020年10月13日 · The MP5 PIP is another design variant that attempted to improve on the MP5. It never entered production either. A straight blowback weapon like the other prototypes, the PIP or Product Improvement Project appears to be the forefather to the G36 cocking handle, and the Weaver scope mounting system of the UMP.

MP5A5命名为“H&K MP5A5 Custom”，沙色涂装，使用战术导轨护木，并将枪托更换为 Magpul 生产的CTR枪托。 使用30发弹匣供彈，大师级解锁，可使用各類配件進行改裝。

MP5 PIP是尝试在MP5基础上改变外形及内部结构的变型枪，但只有木制模型，而没有造出可供实弹试验的样枪。 MP5 PIP拟采用自由式枪机，其拉机柄的形式取自HK36，现已经被G36所采用。

通过试用，HK公司对MP5原枪型的瞄具进行了改进，将翻转式照门改为可在25～100m之间调整的回转环式照门；露出的准星改为带防护圈的准星；带鳍状物的枪管改为光滑的不带鳍状物枪管；枪管前方增加了三片式的卡笋，用以安装消声器、消焰器之类的各种枪口 ...

2025年3月9日 · HK MP5 系列是由 德国 军械厂 黑克勒&科赫 所设计及制造的 冲锋枪，是黑克勒&科赫最著名及制造量最多的枪械产品。 由于该系列冲锋枪获多国的军队、保安部队、警队选择作为制式枪械使用，因此具有极高的知名度。

2022年8月20日 · In this video we take a look at a rare example of one of the prototype submachineguns that bridges the gap between the MP5 and the UMP. Huge thanks for H&K for providing access to this model, as I continue research and preparation for Volume 2 of the Vickers Guide H&K Book Series, which will cover H&K's sub …

The HK PIP is a prototype, West-German sub-machine gun. There is believed to only be one model in existence (that of which is even a mock-up model) of the firearm. The HK PIP features designs such as the "flipper" charging handle which would eventually be used on the HK G36, and following rifles of the same series.