NcStar Aluminum AR / M4 Buffer Tube i4 directly onto the Picatinny rail

directly onto the Picatinny rail

Metal Mil-Spec Buffer Tube

Will not fit in the KWA version

Rocket Airsoft M190 AEG Spring Japanese Black Steel

NcStar Aluminum AR / M4 Buffer Tube i4 directly onto the Picatinny railThe NcStar Aluminum M4 style AR Buffer Tube is NcStar's newest buffer tube system which can be used on real AR platforms or airsoft guns that accept AR M4 buffer tubes (GBBs, ERGs, AEGs etc.). Be sure to check your gun before ordering for which style it is. Milspec and Commercial are slightly different. Commercial Spec 6 position AR buffer tube and castle nut. Designed to fit Commercial Spec MilSpec collapsible buttstocks. Made of precision machined