Aero Precision M4E1 Threaded Complete Upper 5.56 16" M4 Barrel 1-7 Twist

Smith & Wesson M&P 15 Sport III Semi Automatic Rifle 5.56x45mm NATO 16" Black Threaded Barrel Black Frame Black Pistol Grip

Diamondback Firearms DB15 Semi Automatic Rifle 5.56x45mm NATO 16" Black Threaded Barrel Smoked Bronze Cerakote Frame Black Pistol Grip

Springfield Armory Saint Victor AR-15 Semi Automatic Rifle 5.56x45mm NATO 16" Melonite Threaded Barrel Black Frame Black Pistol Grip 30+1

Sig Sauer M400 Rose Semi Automatic Rifle 5.56x45mm NATO 16" Black Threaded Barrel Black Frame Black Pistol Grip With Scope

Radical Firearms FR-16 Woodland 5.56 / .223 Rem 16 Barrel 30-Rounds

Ruger Mini-14 Ranch Semi Automatic Rifle 5.56x45mm NATO 18.5" Stainless Barrel Stainless Frame Black Field Stock

Diamondback DB15 5.56/.223 Rem 16 Barrel 30-Rounds