Available at Evike.com is the EMG 8-Position Ultimate M4 Buffer Tube with version for the Ares Spec, Real Spec, and Marui Spec. Matt gives as a quick look in this video... "The enthusiasts here at EMG go back and forth with various parts trying to find what we like best in our builds.

Evike.com already got in stock the EMG Enhanced Buffer Tubes/Receiver Extensions made for different airsoft gun types... "The EMG Buffer Tube / Receiver Extensions have dropped! They're available in multiple awesome colors, are MIL-Spec sized, with attachment options available for Marui Spec, G&P/ARES Spec, and GBBR/Real Spec!

Upgrade YOUR AEG with the best buffer tube on the market right here at Evike.com."

Latest release from Strike Industries allows you more positions to control length of pull... "Strike Industries proudly introduces the improved 7-position (That's right not 6 position but 7) Aluminum receiver extension MIL-SPEC diameter buffer tube. It will allow users to have finer control of their length of pull.

A new video guide for users of PolarStar Airsoft wanting to install a new FCU (Fire Control Unit) in the buffer tube of M4/M16 and similar platforms. In this case, they used an VFC HK416 for the demo. The FCU allows you to control the Rate of Fire and Burst Settings of the PolarStar Fusion Engine, and is separate from actually controlling the pressure, giving you even better control of your HPA-powered airsoft gun unlike before.