Vltor EMOD A5 AR-15, AR-10 Stock Assembly Flat Dark Earth

The A5 Combo Kit features a longer receiver extension, longer housing, a specially weighted buffer and includes the M16A2 buffer spring. The smoother function and constant spring rate of the M16A2 buffer spring increases accuracy, reliability and performance. The A5 Combo Kit is an excellent choice for addition to any AR platform but is a notably superb upgrade for piston systems. Many piston systems suffer from over-gassed operation and excessive carrier velocities which, both of which can lead