Magpul MAG481-BLK Fixed Carbine Stock - Commercial - Black;

The MOE (Magpul Original Equipment) Fixed Carbine Stock - Commercial-Spec Model provides an inexpensive, fixed, non-collapsing stock option for commercial-spec size carbine-length buffer tubes from manufacturers such as Bushmaster, DPMS, and others. Note: Receiver extensions (buffer tubes) may all look the same at first glance, but there are two styles on the market. Choosing the correct stock for your extension is important, as mismatched stocks may fit loosely or not at all. Most new extensions you'll find are Mil-Spec, but double check before you buy if you're not sure