AR Parts in 5.56x45mm NATO

Strike Industries A2 Blast Shield

Next Level Armament NLA AR -15 M-Lok Handguard 5.56 mm 4.5 in 5 slots Anodized Black

Next Level Armament NLA Sig Sauer MCX Rifle Charging Handle w/ Block Kit Black

Next Level Armament NLA AR -15 M-Lok Handguard 5.56 mm 7 in 5 slots Anodized Black

Next Level Armament NLA AR -15 M-Lok Handguard 5.56 mm 9 in 5 slots Anodized Black

Next Level Armament NLA AR -15 M-Lok Handguard 5.56 mm 15 in 5 slots Anodized Black

Next Level Armament NLA AR -15 M-Lok Handguard 5.56 mm 13 in 5 slots Anodized Black

Sons of Liberty Gun Works M4-89 5.56 AR-15 Partial Upper Receiver Group - 11.5"

East India 5.56x45 Assembled Upper Receiver Starter Kit For Ar15 - East India 5.56x45 Assembled Upper Medium 11.5'''' Bbl W/Rail

XTS AR-15 Bolt Carrier Group 5.56

R Guns Bolt Carrier Group 5.56 AR-15 M16 Compatible Drop-In

LEAD & STEEL Just As Good Upper 5.56mm 16" Gray

LEAD & STEEL ARC Mil-Spec Stripped Upper FDE

LEAD & STEEL ARC Mil-Spec Stripped Upper ODG

LEAD & STEEL Just As Good Upper 5.56mm 16" FDE

LEAD & STEEL All-Rounder Carbine Upper Receiver 5.56 14.5" FDE

LEAD & STEEL All-Rounder Carbine Upper Receiver 5.56 14.5" ODG

AR-STONER AR-15 A3 Extreme Duty Upper Receiver Assembled Aluminum Black

Ruger Short AR-15 Flash Suppressor 1/2" -28 Thread 5.56/223 Steel Blue

Black Rain Ordnance Rain Ordnance Rain Ejection Port Cover

AR-STONER Extended AR-15, LR-308 Magazine Release Button Aluminum

ANDERSON Bolt Carrier Group 223/5.56/300Blk Nickel Boron

Anderson Manufacturing Contour Barrel 16 for AR-15 1/2-28

ANDERSON Bolt Carrier Group 5.56 Low Mass Nitride Steel