Nov 17, 2010 · 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 XM8 abandoned the standard Picatinny rail for attachment of weapon accessories, in favor of a new standard referred to as PCAP (Picatinny Combat Attachment Points), small oval holes on the forward grip. (A variant was designed with MIL-STD-1913 rails — XM8 R; and some early XM8 prototypes had rails.)

Aug 30, 2024 · I've been trying to find dimensions on the PCAP system for years with no luck, so I decided to reverse engineer it as best I could based on images. It appears to follow a "2/3" design method, incorporating 60° angles. Here's a link to an album of reference pics: PCAPs ref pics.

Feb 16, 2004 · Rails have been replaced by "PCAPS", an attachment point system, comprised of the screw-in slots which you can see in the top photo (EGLM w/ range sight). Actually, this is [i]very[/i] similar in concept to the SIR (I'd bet there's more than a passing influence), & one of the better ideas, since it makes for a simpler design.

The barrel was chopped to 12.5" to match my G36K and then painted with AI brown Cerakote. The optic is a Holosun 512c, which I went with because I thought it looked better on the gun than the UH1 many other XM8 owners seem to go with.

Feb 12, 2012 · Is the Spuhr interface similar in concept to the XM8 PCAPs? The XM8 PCAP's were holes not platforms like found here. The PCAPs worked on the same lines as the HK 05 hunting rifle mounts where the mount "feet" opened up inside the mounting hole.

Aug 8, 2024 · WTT brings you the derivative from the US Army's OICW program, the XM8. While the XM8 would never be fully adopted by the US Military, it remains faithfully in the limelight through its notable appearances in multiple video games and media through the times.

Aug 5, 2020 · Probably a top 10 most requested gun. Probably will see it at some point. I hope it comes with a pcaps system, and a pcap to picatinny adapter! Definitely! That system was a big selling point of the rifle at the time. Ah yes, fish gun. Tactical tunaaa.

Jan 1, 2021 · Tommybuilt tactical can make a demilled/parts of an XM8 into a working one. He did so for Larry Vickers and made a custom receiver (in fact Ian made a video on it).

Mar 29, 2019 · 2) PCAPS. The PCAPS system came about as a method of easy return to zero mounting for the XM8 accessories as opposed to the then established M1913 Mil spec rail system. The advantage of easy universal zero of integrated reflex or Magnified optic with integrated laser and IR pointer.