CMMG 55A080BAB: Picking the Br4 is easy, but choosing the right caliber to add to your safe will be a challenge. If you\'re leaning towards the tried and true 5.56mm, you won\'t do wrong with the 14.5\" P&W Br4. Although the barrel is 14.5\" the Zeroed SVD muzzle brake is pinned & welded to the muzzle, bringing the barrel\'s OAL to 16.1\" which means no NFA tax stamp is needed as well as being in one of the best-looking rifles in its class. Comes with (2) Magpul 10rd PMAG.