AR Parts in 5.56x45mm NATO

Walker Defense Research Nero 5.56 Hybrid Muzzle Brake/Compensator - 1/2x28

NBS AR-15 1/2 x 28 Slotted Thread Protector

WBP Mini Jack 5.56 8" Handguard Set - JMac Customs

Dirty Bird 10.5 Government Carbine 5.56 M-LOK Upper Assembly - V3, OD Green

M16A1 C7 Assembled Upper Receiver w/ Brass Deflector

M16A1 C7 Stripped Upper Receiver w/ Brass Deflector - No Feedramps

Dirty Bird 10.3" 5.56 NATO 1:8 V2 M-LOK Upper Assembly - Sniper Grey

Dirty Bird 10.3" 5.56 NATO 1:8 V2 M-LOK Upper Assembly - Midnight Bronze

Dirty Bird 10.3" 5.56 NATO 1:8 V2 M-LOK Upper Assembly - OD Green

Dirty Bird 10.3" 5.56 NATO 1:8 V2 M-LOK Upper Assembly - FDE

Dirty Bird 10.3" 5.56 NATO 1:8 V2 M-LOK Upper Assembly - Black

Dirty Bird AR-15 SMRS Handguard - Slim M-LOK Rail System V3 - 7", Black

Dirty Bird 20" M16A1 Enhanced 5.56 Retro Upper Assembly - M4 Feed Ramps

NBS AR-15 .223/5.56 Bolt Carrier Group - DLC

NBS 11.5" Slick Side 5.56 Nitride-Carbine M-LOK Upper Assembly

NBS Premium Series 16 5.56 Upper Assembly w/ Rosco Barrel and Geissele MK14 Handguard

NBS Premium Series 16" Upper Assembly w/ BA Barrel and Geissele MK8 Handguard

BCM Standard Midlength Enhanced Light Weight Fluted Upper Receiver Group - MCMR-15 Handguard - 16"

BCM 5.56 NATO Mid-Length BHF Barreled Upper - MCMR-15 - 16"

BCM Standard 5.56 NATO Upper Receiver Group - MCMR-15 Handguard - 20"

BCM 16" 5.56 NATO 1:7 Enhanced Light Weight Barreled Upper - 15" M-LOK MCMR Rail

Modern Armory .223/5.56 9310 Bolt Carrier Group Black Nitride

NBS 8 Pistol 5.56 M-LOK Upper Assembly

10.5" 5.56 Stainless Steel Carbine 1:7 Medium Barrel