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Primary Weapons System PWS Complete 5.56mm MK-112 Upper
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MK-112 Complete Gas Piston Upper Receiver 12.5-inch barrel from Primary Weapon Systems AR15/M4
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Primary Weapons System PWS Complete 5.56mm MK-114 Upper
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MK-112 Complete Gas Piston Upper Receiver 14.5-inch barrel from Primary Weapon Systems AR15/M4
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Primary Weapons System PWS Complete 7.62 x 39mm MK-114 Upper
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MK-114 7.62 x 39mm Complete Gas Piston Upper Receiver 14.5-inch barrel from Primary Weapon Systems. Pinned Flash Hider
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Primary Weapons Systems Enhanced Buffer Tube - 416
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The PWS Enhanced Buffer Tube is the first major upgrade and improvement to the buffer tube in years! Click Picture for Full Benefits of the EBT 416. Incoming 3rd week October
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Primary Weapons Systems PWS Enhanced Buffer Tube Pistol
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PWS Enhanced Pistol Buffer Tube for the AR-15/MK1/MK2 Series Pistols
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PWS MK107 Diablo Complete 7.62x39mm 7-Inch Upper
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Primary Weapon Systems MK107 Diablo Complete Piston AR Upper chambered in 7.62x39mm 7-Inch Barrel
**Click Picture for Full Specs**
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Primary Weapons System PWS Complete 5.56mm MK110 Mod1 Upper
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MK110 Mod1 Complete Gas Piston Upper Receiver 10.75-inch barrel from Primary Weapon Systems AR15/M4
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Primary Weapons System PWS Diablo Complete 5.56mm 7-Inch Upper
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PWS Diablo MK 107 Complete Gas Piston Upper Receiver - 7-inch barrel - from Primary Weapon Systems **Click Picture for Full Specs** In-Stock!!
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Primary Weapons System PWS Complete MK116 5.56mm 16-Inch Upper
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Complete Gas Piston Upper Receiver - 16 inch barrel - from Primary Weapon Systems **Click Picture for Full Specs**
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Primary Weapons Systems Enhanced Buffer Tube - Mil Spec
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The PWS Enhanced Buffer Tube is the first major upgrade and improvement to the buffer tube in years! Click Picture for Full Benefits of the EBT
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Primary Weapon Systems Tungsten ST2 Buffer
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The ST2 Buffer is filled with high density tungsten powder instead of solid weights which helps smooth cycling and reduce felt recoil. The ST2 buffer is slightly heavier than the H2 buffer.
