AR Parts in 5.56x45mm NATO

Atrius Forced Reset Selector Milspec

One Horse OH-15 A3 Stripped Upper Multi-Cal

Rosco Stray Dog Barrel 5.56 16 Barrel

Superlative Arms Mid-Length Piston System w/Solid Set Screw Gas Block 0.625" x 1", Black

Stern Defense H2S Hybrid AR-15 Two Stage Trigger Nickel Boron

Noveske Pig Pen Flash Hider 5.56 1/2x28 Long

Radian Weapons Model 1 Complete Upper Gray .223 Wylde 14.5 P&W Barrel

Yankee Hill Machine Barrel Thread Protector Cap 1/2"-28 Pencil Barrel Steel Black

Timber Creek Outdoors AR Forward Assist Tan

Faxon Firearms ARAK21 Complete Upper Midnight Bronze 5.56 16 Barrel

Faxon AR-15 ARAK-21 Upper Receiver Assembly 5.56x45mm NATO 12.5" Barrel

Faxon Duty Series AR-15 Barrel 5.56x45mm NATO 16" Pencil Contour 1:8" Twist Nitride with Pinned Gas Block

Faxon Firearms Ion Ultralight Complete Upper 5.56 / .223 Rem 16 Barrel 13 Handguard

Daniel Defense AR-15 Barrel 5.56x45mm NATO 18" Strength 2 Weight (S2W) Contour 1:7" Twist Matte

VG6 Precision Gamma 556SL Muzzle Brake 5.56mm 1/2"-28 Thread Steel Black

Aero Precision AR15 Stripped Upper Black

Aero Precision Charging Handle Ambidextrous for AR-15

Aero Precision Standard Assembled AR-15 Upper Receiver Aluminum Black

Phase 5 Battle Latch AR-15 Ambidextrous Charging Handle

JP Enterprises Enhanced Bolt Assembly Completion Group .223 Remington, Black

Luth-ar UR-01-E3-S A1 Stripped Upper Receiver 223/5.56mm Aluminum Black Hardcoat Anodize Receiver

KAK Industry K-SPEC Enhanced Bolt Carrier Group Silver for AR-15

AR-STONER AR-15 Lower Receiver Vise Block

DPMS Kitty Kat Complete Upper 5.56 7.5 Threaded Barrel Quad Rail Handguard