Adams Arms Ar-15/M16 5.56 16″ Basic Piston Upper Receivers

$529.99

Ready To Install To Make A Reliable, Clean Running Piston Rifle

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SKU: 2175201823193749 Category:

Description

Complete Base upper receiver assembly comes ready to install on mil-spec lower receiver to produce a reliable, positive-cycling gas piston gun. Adams Arms’ proven piston system doesn’t vent hot gases and burned powder into the bolt carrier and receiver, so the gun runs cooler, with less fouling and wear on the action, and easier maintenance. Short-stroke piston shaft eliminates concussive gas expansion in the upper receiver for less violent cycling, smoother feeding, and reduced felt recoil. The receiver is forged from 6061 T6 aluminum and features M4 feed ramp cuts and a 13-slot Picatinny-cut flattop rail. The adjustable gas block allows three levels of gas release: norm Mfg: Adams Arms SPECS: Receiver 6061 T6 aluminum, hardcoat anodized, black. Barrel Chrome-moly steel, Melonite coated, matte black. Gas Block, Piston Tube, Bolt Carrier Steel, black oxide finish. Piston Stainless steel. Carbine 16″ (40.6cm) barrel, Par

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