it's an overpriced, over hyped, piston driven AR15. a stag arms, Adams arms or just about any other piston AR could do everything that the MR556 can do for almost a third of the price. I have little respect for heckler and koch. true they are good guns but the prices that they ask are way beyond their worth IMHO.
ignore my complete lack of capitalization. I still have no problem correcting your grammar.
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Bean counters told me I couldn't fire a man for being in a wheelchair, did it anyway. Ramps are expensive.-Cave Johnson.