This video explores the Primary Weapons Systems (PWS) MK1 MOD 1-M upper receivers, highlighting their long-stroke piston system. The description emphasizes the system's reliability and introduces features like a free-float MLOK handguard and a design closer to mil-spec standards. It positions the MK1 MOD 1-M as a robust and valuable option for both civilian and law enforcement users, emphasizing its forged construction and relentless performance.
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