GunPundit reports …
Straight from the Stag Arms vault, and once reserved exclusively for Law Enforcement, Military, and Special Forces – the highly anticipated SBR uppers will now be available to the general public in a wide range of configurations to best suit consumer needs. All SBR uppers boast a 5.56 NATO chamber, 1/7 twist rifling, M4 feed ramps, and a MP tested and marked bolt and will ship complete with bolt carrier assembly and charging handle.