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Anderson EXT16M4RF AR-15 RF85 Treated Mil-Spec Complete Upper 16" 1:8 M4 Profile Barrel, .223 Rem/ 5.56 NATO
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CBC Industries AR-15 Barrel - 16" Barrel - 5.56 NATO - Colt Competion Style - 110-210
Colt Defense Un-issued Prototype IAR (Infantry Assault Rifle) Upper Receiver W/ Knights Armament Flip-up Sights - 16&quo
Wolf Performance A1 Complete Upper 16" 5.56 NATO 1:7 Piston Driven
Plum Crazy Complete Polymer Upper, 5.56 NATO 1:7
AR-15 16" Heavy Barrel, 223 WYLDE, 1:8, Unthreaded, Parkerized
Bear Creek Arsenal AR-15 Basic Bear Barreled Upper .223 Wylde
Anderson Manufacturing Barrel AR15 556/223 16" Carbine Length 1:8 Twist - AM0416M418
BCA Ursid Hybrid AR15 Upper Receiver, 16", .223 Wylde - w/o BCG or Charging Handle
AR-15 16" Lightweight Barrel, .223 WYLDE, 1:8, Parkerized
AR-15 16" Heavy Barrel, .223 WYLDE, 1:8 5R, Spiral Fluted, Stainless
AR-15 16" Heavy Barrel, .223 WYLDE, 1:9 Twist, Dimpled, Stainless
AR-15 16" M4 Barrel, .223 WYLDE, 1:9, Parkerized
AR-15 16" Heavy Barrel, .223 WYLDE, 1:8, Spiral Fluted, Stainless/Melonite (Bear Claw)
AR-15 16" Heavy Barrel, .223 WYLDE, 1:9, Spiral Fluted, Stainless/Black Nitride (Bear Claw)
Anderson AR-15 Complete Mil-Spec Upper Receiver Less Charging Handle and BCG - 16" M4 Profile Barrel, .223 Rem/ 5.5
AR-15 16" Heavy Barrel .223 WYLDE, 1:8, Parkerized
AR-15 16" M4 Contour Barrel, .223 WYLDE, 1:8, Stainless
AR-15 16" M4 Contour Barrel, .223 WYLDE, 1:9, Stainless
AR-15 16" Heavy Barrel, .223 WYLDE, 1:9, Diamond Fluted, Stainless