This review of the Heckler & Koch MP7A2 highlights its evolution from the MP7A1, focusing on the tri-rail system and adjustable stock. Ballistic testing in gel shows the 4.6x30mm round's surprising close-range performance, with tumbling and expansion comparable to 5.56mm in energy dump. The video emphasizes the MP7A2's design intent for rapid, multi-round engagement in full-auto.
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