FAB Defense GL-CORE M CP Features The FAB Defense GL-CORE M CP stock includes a built-in concealed magazine carrier that stores up to ten rounds of standard 5.56x45 (.223 Rem) ammunition or a spare FAB Defense Ultimag magazine directly in the buttstock. This means a shooter s last reserve of ammunition rides with the rifle at all times rather than requiring a separate belt or vest pouch which is especially useful for a home-defense or truck gun setup. An adjustable cheek piece raises or lowers to help align the shooter s eye with an optic or iron sights for a more consistent sight picture shot to shot. This combination of storage and adjustability makes the stock a practical all-in-one accessory for AR-15 and M4 owners. A unique anti-rattle mechanism holds the stock firmly in place on the buffer tube eliminating the loose rattly feel common with many collapsible stocks during handling or transport. The butt pad is made from a high-quality rubber that resists slipping against the shooter s shoulder during recoil improving control on follow-up shots. Constructed from durable synthetic stock material the GL-CORE M CP fits both Mil-Spec and Commercial diameter buffer tubes giving it broad compatibility across AR-15 and M4 platform builds. For shooters who want spare ammunition a stable cheek weld and a rattle-free stock in one package this FAB Defense stock delivers all three. Fab Defense GL-CORE M CP Specifications Brand: FAB Defense Model: GL-CORE M CP Compatible Hosts: AR-15 / M4 Material: Synthetic Color: Black Tube Included: No Butt Pad: Rubber Magazine Capacity: 10 Rounds (5.56x45) Available At: GrabAGun