The Heckler & Koch XM8 is a lightweight assault rifle system developed from the late 1990s to early 2000s. The rifle was designed by German small arms manufacturer Heckler & Koch (H&K), and shares design and engineering with their G36 rifle.

2022年12月3日 · The XM8 featured some fairly advanced features, including an integrated red dot/IR laser produced by Insight and a rail system known as PCAP. PCAP stands for Picatinny Combat Attachment Points. This system allowed soldiers to place the rails right where they needed them. It’s a modular rail that predates M-LOK and Keymod.

xm8-r——scar竞争样型 XM8-R的R是“导轨”Rail的缩写。 虽然XM8-R计划采用更先进的PCAP接口，但为了参与竞争USSOCOM的SCAR项目，因而生产了这种导轨型的XM8-R。

xm8本质上是xm29的5.56mm步枪部分，通过模块化组合使它成为单个机构，并可以根据不同的任务需要和作战地域，转换成不同的枪型或发射不同口径的弹药。由于采用了xm29的先进技术，xm8的基本型（卡宾枪型）重量将比m4/m4a1轻20%。

xm8本质上是xm29的5.56mm步枪部分，通过模块化组合使它成为单个机构，并可以根据不同的任务需要和作战地域，转换成不同的枪型或发射不同口径的弹药。由于采用了xm29的 先进技术 ，xm8的基本型（ 卡宾枪 型）重量将比m4/m4a1轻20%。

2010年11月17日 · The PCAP's were developed by HK GmbH for the XM8 to provide quick attach/release and return to zero. The idea was mine based on the proven mounting interface used on various HK hunting rifles with the "O5" mount.

The Heckler & Koch XM8 is a modular assault rifle system designed by Heckler & Koch. Originally conceived as the assault rifle portion of the XM29 OICW, the XM8 was designed in 2002 as a possible replacement for the M4 carbine and M16 rifle series and is heavily based on Heckler & Koch's G36 rifle series. The XM8 is designed to be highly ...

2017年5月31日 · 细心的人可能会发现，xm8并没有皮轨，一款为美军研发的步枪没有皮轨是非常不正常的，那它是怎么装附件的呢？ 红圈内就是PCAP接口，护木一侧各有4个，护木底部也有4个

Early XM8 prototypes resemble mix-and-match G36 rifles, and feature Picatinny top rails. Spiral 1 XM8 models have the distinctive stylized curved receiver and no Picatinny rails. Instead, they have 2 PCAP holes on their handguard. Spiral 2 XM8 models are …

2013年6月18日 · The HK G36 was never submitted or tested as an XM8. The very first prototypes were mostly G36's but with a retractable stock design and Picatinny aluminum rail. Before XM8 was completed as a prototype it had undergone 4 radical redesigns and most every part in the two weapons were no longer interchangeable.