AR Parts in 5.56x45mm NATO

Linemount Retro M16A1 Birdcage Flash Hider 1/2"-28 Thread

Lewis Machine & Tool (LMT) AR-15 MRP Chrome Lined 5.56 Piston AR-15 Barrel - 14.5"

Lewis Machine & Tool (LMT) AR-15 MRP Chrome Lined 5.56 Piston Barrel - 12"

Lewis Machine & Tool (LMT) AR-15 FSB 5.56 Barreled Upper Receiver - 10.5"

Lewis Machine & Tool (LMT) AR-15 5.56 NATO Flattop Stripped Upper Receiver - 16"

LMT Defense Full-Auto Piston 5.56 Bolt Carrier G2

Lewis Machine & Tool (LMT) AR-15 5.56 Enhanced Full Auto Bolt Carrier Group

Lewis Machine & Tool (LMT) AR-15 5.56 Full Auto G2 Piston Bolt Carrier Group

Lewis Machine & Tool (LMT) AR-15 5.56 Standard Full Auto Bolt Carrier Group

Lewis Machine & Tool (LMT) AR-15 FSB 5.56 Barreled Upper Receiver - 14.5"

Lewis Machine & Tool (LMT) AR-15 5.56 Semi Auto G2 Piston Bolt Carrier Group

LMT Defense 5.56 Bolt

Lantac E-CT1 SINGLE STAGE TRIGGER

Knight's Armament Company (KAC) SR-15 Ambidextrous AR-15 Charging Handle

Ke-15 Upper Reciever W/ Forward Assist & Dust Cover - Ke-15 Upper Reciever W/ Forward Assist & Dust Cover 5.56mm

Ke-15 Stripped Upper Receiver 5.56mm

JP Enterprises Supermatch Barrel With Headspaced Jp Enhanced Bolt 5.56 13.5in Black

JP Enterprises Supermatch Barrel With Headspaced Jp Enhanced Bolt 5.56 13.5in Silver

JP Enterprises Supermatch Barrel With Headspaced Jp Enhanced Bolt 5.56 10.5in Black

JMac Customs Crush Washer Muzzle Device 1/2-28 Thread Black

JARD AR Side Charge .223/5.56 No Bolt Upper Receiver Assembly Black

Iron City Rifleworks S2 Nitride Elite 5.56/.223/300BLK BCG

HM Defense HM15P 556 Nickel Boron Upper HMP15-SPFCR-556-NB

HM Defense AR-15 Bolt Carrier Group - Black Nitride