Build More, Save More | Get up to $220 Off! | Shop Now

Build More, Save More | Get up to $220 Off! | Shop Now

Lower Receivers - Black

Build your custom AR-15 with a black lower receiver from AT3’s extensive selection. The lower houses the trigger assembly and is legally classified as a firearm. Our inventory includes mil-spec and premium billet black lowers from trusted brands. Simply choose your preferred option and we’ll ship it promptly to your READ MORE

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(17)

AT3™ AT-15 Stripped Lower Receiver – Anodized and Cerakote

RECOMMENDED

(9)

AT3™ AT-15 M-LOK Builder Set – Anodized and Cerakote

(2)

AT3™ AT-15 Lower and Upper Receiver Set – Anodized and Cerakote

RECOMMENDED

AT3 Tactical AT-15 Quad Rail Builder Set - Upper, Lower, and Handguard - 15 Inch - Black

(6)

AT3™ AT-15 Quad Rail Builder Set – Anodized and Cerakote

AT3 Tactical AT-15 Lower with Rise Armament Rave 140 Trigger - Black - Curved

(2)

AT3™ AT-15 Lower Receiver with Rise Armament Rave 140 Single Stage Trigger

AT3 Tactical SPEAR XL Billet Builder Set - 12 Inch - Black

AT3™ AT-15 SPEAR XL Billet Suppressor Ready Builder Set – Anodized and Cerakote

RECOMMENDED

(1)

AT3™ AT-15 SPEAR XL Forged Suppressor Ready Builder Set – Anodized and Cerakote

CMMG Mk3 AR-10 Stripped Lower Receiver

CMMG Mk3 AR-10 Stripped Lower Receiver

Xiphos

Battle Arms Development AR-9 Xiphos Billet Lower Receiver – Glock Compatible

UTG PRO AR-15 Billet Receiver Set

(1)

UTG PRO AR-15 Billet Receiver Set

JP Enterprises GMR-15 9mm Billet AR-9 Stripped Lower Receiver - Glock Style

JP Enterprises GMR-15 9mm Billet AR-9 Stripped Lower Receiver – Glock Style

FMK Firearms AR1 Extreme AR-15 Stripped Lower Receiver - Black Polymer - 556 - 2

(6)

FMK Firearms AR1 Extreme AR-15 Stripped Lower Receiver – .223/5.56 – Black Polymer

Sharps Bros Overthrow Gen 2 Spartan Billet Lower - Bronze (2)

Sharps Bros. SBLR07 Gen 2 Overthrow Bronze Cerakote Billet Stripped Lower Receiver

UTG PRO AR-15 Ambi Billet Receiver Set

UTG PRO AR-15 Ambi Billet Receiver Set

KE Arms KP-15 "Mil-Spec" Monolithic Polymer Lower Receiver - Black - AT3 Tactical

KE Arms KP-15 Mil-Spec Monolithic Polymer AR-15 Lower Receiver – Black

Sharps Bros., SBLR03, Gen 2 The Jack, Semi-automatic, Billet Lower Receiver, 223 Rem/556NATO, Black Finish, CNC Machined from 7075 Billet Aluminum

Sharps Bros. SBLR03 Gen 2 The Jack Billet Stripped Lower Receiver

Yankee Hill Machine AR-15 Complete Lower Receiver - Commercial Extension - M4 Stock

Yankee Hill Machine AR-15 Complete Lower Receiver – Commercial M4 Stock

Rise Armament Stripped AR-15 Lower Receiver - Anodized Black

Rise Armament Stripped AR-15 Lower Receiver – Anodized Black

Odin Works OTR-15 Billet 7075 Stripped AR-15 Lower Receiver

Odin Works OTR-15 Billet 7075 Stripped AR-15 Lower Receiver

Spike's Tactical ST-15 Complete AR-15 Lower Reciever - Color Filled - ST-T2 Tungsten Heavy Buffer

Spike’s Tactical ST-15 Complete AR-15 Lower Reciever – Color Filled – ST-T2 Tungsten Heavy Buffer

Sharps Bros Overthrow Gen 2 Spartan Billet Lower - Black

Sharps Bros. SBLR07 Gen 2 Overthrow Billet Stripped Lower Receiver

NEW

Ruger AR-15 Stripped Lower Receiver – 7075-T6 Forged Aluminum – Black

NEW

Ruger AR-15 Complete Lower Receiver – Magpul DT Stock & MOE-K2 Grip – Elite 452 Trigger

Spike's Tactical ST9 AR-9 Lower - 9MM - Colt Style

Spike’s Tactical ST9 AR-9 Lower – 9MM – Colt Style

Build your custom AR-15 with a black lower receiver from AT3’s extensive selection. The lower houses the trigger assembly and is legally classified as a firearm. Our inventory includes mil-spec and premium billet black lowers from trusted brands. Simply choose your preferred option and we’ll ship it promptly to your local FFL dealer. Browse our black lower receivers and complete your black rifle build today!