5.56x45mm NATO Lower Receivers

Centurion Arms F15 5.56 Stripped Forged Lower Receiver

Surefire Optimized BCG w/ Buffer & Spring

Anderson Stripped Lower Receiver - No Logo - Midnight Bronze

Anderson Stripped Lower Receiver - No Logo - OD Green

Anderson Ghost Complete Lower Receiver w/ SBA3 Brace

JP Enterprises JP-15 Forged AR-15 Receiver Set

Centurion Arms CM4 5.56 Forged AR-15 Receiver Set

Centurion Arms CM4 5.56 Forged AR-15 Lower Receiver

Anderson Ghost A2 Complete Lower Receiver

AR MAGLOCK AR-15 Gen 4 Fixed Magazine Lock and Release Solution - With Steel EZ Pull Takedown Pin

Anderson Stripped Lower Receiver - No Logo - Black

Centurion Arms CM4 Forged 5.56 Stripped Upper/Lower Set - Thermal Fit

Aero Precision M4E1 Complete Lower Receiver w/ ALG QMS Trigger - Kodiak Brown

Aero Precision M4E1 Complete Lower Receiver w/ ALG QMS Trigger - OD Green Anodized

Anderson Manufacturing AM-15 Stripped Lower Receiver - Open - Trump Survivor

Anderson Stripped M16 Cut Lower Receiver - No Logo

Anderson Manufacturing AM-15 AR-15 Builder Set - 15" - Punisher

Ohio Ordnance Works AR15A4 Stripped Forged Lower Receiver

Anderson Manufacturing AM-15 Stripped Lower Receiver - Open - Anodized Black

SLR Rifleworks Billet Lower SLR 556

LMT Defense 5.56 Lower Parts Kit w/ Two Stage AXLE Trigger

Anderson Mil-Spec Lower Build Kit - Stainless (Black)

Aero Precision M4E1 Builder Set w/ 15" ATLAS S-ONE M-LOK Handguard - Rattlesnake Camo

Aero Precision M4E1 Builder Set w/ 12.7" ATLAS R-ONE M-LOK Handguard - Gunmetal Grain