The Mega Arms MTS or Megalithic Tactical System is a really cool one piece upper that replaced their popular “Monolithic” uppers that they used to make. When the Megalithic version was introduced there were two models, one KeyMod and one Quad Rail. For some time though it seemed that Mega Arms would not be producing the Quad Rail version due to the popularity of the KeyMod version. After tons of people requested that Mega Arms make the Quad Rail MTS upper they realized that there was enough demand for it to make that happen. Starting next week, Mega Arms will …read more
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