It's rather astonishing what the aggregate value of what seem like relatively insignificant component changes can make to the handling and capabilities of a rifle.
The standard AR15 buffer system works, and has been improved over time. That said, however, there's still room for improvement - not only in regards to handling and recoil mitigation but even reliability.
In this video we discuss the solution we've gone with for the WWSD project.
InRange does have an Optics Planet discount code that you can use for almost anything you acquire from them. We don't get money for that, but we do get cool guy points to get discounts for future purchases:
Use code "IRTV5" for 5% off your entire OpticsPlanet.com order!
InRange is entirely viewer supported, please consider it!