Lowers

Radian Weapons

Radian Weapons ADAC-15 Lower Receiver - Black Finish

Franklin Armory

Franklin Armory FAI-15 Stripped Lower Receiver - Hardcoat Anodized, Binary Trigger Ready

Bushmaster

Bushmaster BFSIII Built Lower Receiver in Matte Black with Collapsible Stock and 30-Round Aluminum Magazine

Bushmaster

Bushmaster M4 Built Lower Receiver - Complete 223 Rem | 5.56 NATO Firearm Accessory

Radian Weapons

Radian Weapons ADAC-15 Lower Receiver - Radian Brown Finish

Radian Weapons

Radian Weapons ADAC-15 Rifle Lower Receiver - Black, Model R0848

Diamondback Firearms

Diamondback Firearms Black Gold DB15 Lower Receiver - Matte Black Finish

American Tactical Inc. (ATI)

American Tactical Inc MILSPORT Complete Lower Receiver (Part Number: ATIGLOWMS15)

Bushmaster

Bushmaster XM15-E2S Lower Receiver F1003308 - Matte Black Firearm Accessory

Diamondback Firearms

Diamondback Firearms Carbon DB15 Lower Receiver - Multi Caliber, Matte Black

Radian Weapons

Radian Weapons ADAC-15 Lower Receiver in Flat Dark Earth

Franklin Armory

Franklin Armory BFSIII M4-BLR Lower Receiver with A2 Stock and 30-Round Magazine