Geissele Style Aluminum RIS/RAS HK416 handguard M92f 25mm nitrogen filled tube provide

25mm nitrogen filled tube provide the best view throughout the scope

Hop-up: Adjustable

Barrel length:112mm/4

This system consists of two parts

-steel gears w/ auto-shimming system

Geissele Style Aluminum RIS/RAS HK416 handguard M92f 25mm nitrogen filled tube provideThis rails became famous with the US Navy SEALs unit DEVGRU or known as SEAL Team SIX the unit who was on the Bin Laden raid and several other secret missions. It is also in use with other SF units around the world. Now, lots of airsofters go crazy to build their blasters that way! At the very beginning, there was no option for airsofters to get a Geissele Rail replica! Just the real steel was available and who wants to spend a thousand bucks just for