The AR15 charging handle we're all familiar with was actually an afterthought when the original design of a trigger shaped handle under the "carrying handle" turned out to get too hot.
The AR15 charging system actually turned out to be a good solution in regards to heat mitigation and to keep the weapon sealed against the ingress of dirt and debris.
While the standard charging handle is sufficient, there is actually a lto of room for improvement. While it seems like this would be a relatively insigifcant change, it actually is not, and we discuss that in this video where we've chosen to standardize on the Geissele Super Charging Handle for the WWSD project.
Geissele Super Charging Handle: https://geissele.com/upper-parts/super-charging-handles.html
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