*Lowers

Wilson Combat

Wilson Combat TRLOWERK10 Lower Receiver Rifle Universal

Aero Precision

Aero Precision Pro Lower Receiver M4E1 Compatible w/ AR15 Components and Magazines

Shield Arms

SHIELD SA-15-SLU SA15 LOWER STRIPPED BLK

Battle Arms Development

Battle Arms Development XIPHOS-LR Lower Receiver 9mm Aluminum Black Anodized for Glock

Bushmaster

XM15-E2S STRIPPED LOWER REC223 Rem | 5.56 NATO

FIGHTLITE INDUSTRIES

Fightlite Industries SCRLWRP Lower Receiver for AR/M4

Smith & Wesson

Smith & Wesson 812002 Assembled Lower Receiver 5.56x45mm NATO 7075-T6 Aluminum Black Receiver, Black Synthetic Collapsible Stock Pistol Grip for S&W M&P15

TacFire

TacFire LPK02USAB Lower Parts Kit AR-15 Black PGAR-B Grip Black

FN

FN15 MIL COLLECTOR M4 LOWER223 Rem | 5.56 NATO

Strike

Strike ARELRPLT Lower Parts Kit Enhanced AR-15

Spikes

Spikes STLS030 Snowflake Stripped Lower Receiver Multi-Caliber 7075-T6 Aluminum Black Anodized for AR-15

Bushmaster

Bushmaster 0020010BLK M4 Built Lower Receiver