The FN 15 SRP G2 Upper Receiver Assembly is streamlined, providing a multitude of MIL-SPEC configurations to meet and exceed your needs. The FN 15 SRP G2 offers a lightweight design with extended hand guard maximizing top rail space with multiple M-LOK slots and QD points for maximum configurability. Chambered in the battle-proven 5.56x45mm, these uppers offer reliability and accuracy in every mission. FeaturesLightweight with maximum 12 o'clock rail spaceChrome lined barrel with pinned low-profile gas blockM16 style bolt carrier, bolt MPI inspected and markedHard Chrome plate chamber and bore