AR Parts in 5.56x45mm NATO

Aero Precision AR-15 M4E1-E Barreled Upper Receiver 5.56x45mm NATO 14.5" Barrel 12.7" ATLAS R-ONE Handguard Black

Radian Weapons Model 1 Upper Receiver and Hand Guard Set 15.5 in M-LOK Radian Black

Radian Weapons AR-15 Raptor Charging Handle/Talon Safety Selector Combo FDE

Faxon Firearms ARAK21 Complete Upper Tungsten 5.56 16 Barrel

Diamondback AR-15 Barrel 5.56x45mm NATO 16" Medium Contour Carbine Length1:9" Twist Black

LMT Defense Monolithic Rifle Length Barrel 5.56 20

LMT Defense Monolithic 12.5 Mid Length Barrel 5.56

LMT Defense Ambidextrous 5.56mm Charging Handle

Bravo Company MK12 Stainless Steel Rifle Length Gas System 18 fits AR-15

BRAVO COMPANY BCM Gunfighter Charging Handle 556 Mod 3B Lg Latch

Luth-AR AR-15 Complete Bolt Carrier Group 223/5.56 Gold

KAK Industry Parts Kit

Primary Weapons Systems FRC Flat 3-Port Compensator 5.56 1/2x28

Primary Weapons Systems FRC Flat Triad Compensator 5.56 1/2x28

San Tan Tactical AR-15 Everything but the Lower Kit 5.56x45mm NATO 11.5" Barrel

VKTR Industries VK-1 5.56x45mm 16" 1:7 M-LOK Rail w/ BCG & CH, Black - V-4027-3410-001-RP

Geissele CHF AR-15 Barrel 5.56x45mm NATO 13.9" Geissele Contour 1:7" Twist Manganese Phosphate

Geissele CHF AR-15 Barrel 5.56x45mm NATO 11.5" Geissele Contour 1:7" Twist Manganese Phosphate

Geissele CHF AR-15 Barrel 5.56x45mm NATO 14.5" Geissele Contour 1:7" Twist Manganese Phosphate

Geissele CHF AR-15 Barrel 5.56x45mm NATO 16" Geissele Contour 1:7" Twist Manganese Phosphate

Strike Industries PolyFlex AR-15 Trigger Guard with Finger Rest Polymer Black

Sons Of Liberty Gun Works Firing Pin for AR-15 Stainless

GunTec AR-15 Charging Handle Mil-Spec Standard Latch

LanTac Enhanced Side Charger Bolt Carrier Group Nickel Boron