The Griffin MK2 rifle series improves on the features of the MK1 by improving the foundation of the rifle; its lower receiver. The Griffin MK2 fully-ambidextrous lower receiver is manufactured using aerospace manufacturing techniques to derive sub-mil-spec tolerances and unparalleled quality. All control features are mirrored affording full ambidextrous functionality. The MK2 CQB tuned carbine-length gas system and suppressor optimized buffer system ensure a soft yet reliable gas system suppressed or unsuppressed. The 416R SS barrel provides exceptional accuracy and durability.