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Krytac M4 / LMG Rotary Hopup Unit | M4 / M16 Style AEGs
This Krytac M4 / LMG Rotary Hopup Unit for M4/M16 Style AEGs makes for a great replacement if you find yourself in need of a new hop unit. High quality reinforced polymer construction Rotary style adjustment knob Tactile feedback adjustment Easy maintenance Factory direct OEM replacement part
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