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AR-15 Lower Parts
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AR-15 Lower Build Kits
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AR-15 Complete Uppers
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Sights & Optics
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Forced Reset Triggers
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Glock Parts & Kits

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EXPLORE CATEGORIES

AR-15 Lower Parts
AR-15 Lower Parts
AR-15 Safety Selector
AR-15 Safety Selector
Forced Reset Triggers & Systems
Forced Reset Triggers & Systems
AR-15 Upper Parts
AR-15 Upper Parts
AR-15 Bolt Carrier Groups
AR-15 Bolt Carrier Groups
AR-15 Lower Build Kits
AR-15 Lower Build Kits
AR-15 Complete Uppers
AR-15 Complete Uppers
AR-15 Stocks & Buffer Kits
AR-15 Stocks & Buffer Kits
Sights & Optics
Sights & Optics
Other Platforms
Other Platforms
AR-15 Barrels
AR-15 Barrels
AR-15 Handguards & Rails
AR-15 Handguards & Rails

Deals Depot

Shop incredible deals on AR-15 Parts, Ammo, Optics and More!

On-Sale
SB Tactical SBA6 black brace bundled with BRD mil-spec carbine buffer kit and 31-piece AR-15 lower parts kit
Out of stock

SB Tactical SBA6 Lower Build Kit – Black

Save 51%
MSRP: $243.95
$119.95
On-Sale
Dirty Bird AR-15 5.5oz H3 Buffer

Dirty Bird AR-15 5.5oz H3 Buffer

Save 10%
$89.95
On-Sale
Vortex Crossfire II 2 MOA Red Dot

Vortex Crossfire II 2 MOA Red Dot

Save 55%
MSRP: $219.99
$99.99
On-Sale
Rise Armament Two-Stage Flat Trigger

Rise Armament Two-Stage Flat Trigger

Save 27%
MSRP: $109.99
$79.99
On-Sale
Vortex Venom Enclosed Red Dot Sight

Vortex Venom Enclosed Red Dot Sight

Starting from: $149.95
On-Sale
Vortex Defender-CCW Enclosed Solar 3 MOA Red Dot Sight

Vortex Defender-CCW Enclosed Solar 3 MOA Red Dot Sight

Save 45%
MSRP: $399.99
$219.95
On-Sale
Vortex Defender-ST Enclosed Solar 3 MOA Red Dot Sight

Vortex Defender-ST Enclosed Solar 3 MOA Red Dot Sight

Save 49%
MSRP: $529.99
$269.95
On-Sale
Rise Armament RA-100 Two Stage Trigger

Rise Armament RA-100 Two Stage Trigger

Save 27%
MSRP: $109.99
$79.99
On-Sale
Rogers Super-Stoc Mil-Spec Carbine Buttstock w/ Build-in QD Base

Rogers Super-Stoc Mil-Spec Carbine Buttstock w/ Build-in QD Base

Starting from: $34.95
On-Sale
AR 15 Lower Build Kit
Out of stock

AR 15 Lower Build Kit

Save 50%
MSRP: $109.95
$54.95
On-Sale
ODIN Works XMR 2 Extended Mag Release

ODIN Works XMR 2 Extended Mag Release

Starting from: $18.95
On-Sale
Vortex Venom 1-6-24 SFP 30mm AR-BDC3 LPVO w/ 2" Cantilever 30mm Mount

Vortex Venom 1-6-24 SFP 30mm AR-BDC3 LPVO w/ 2″ Cantilever 30mm Mount

Save 49%
MSRP: $469.99
$239.95
On-Sale
CMC Single Stage Combat Curved Hybrid Drop-In Trigger - 3.5lb

CMC Single Stage Combat Curved Hybrid Drop-In Trigger – 3.5lb

Save 53%
MSRP: $189.99
$89.95
On-Sale
NcSTAR AR Handguard Removal Tool

NcSTAR AR Handguard Removal Tool

Save 37%
MSRP: $10.99
$6.95
On-Sale
Global Ordnance 5.56/.223 AR-15 30rd Steel Magazine - Black

Global Ordnance 5.56/.223 AR-15 30rd Steel Magazine – Black

Save 19%
MSRP: $10.99
$8.95
On-Sale
BLACK RIFLE DEPOT Mil Spec AR 15 Stock and Buffer Kit, AR15, AR 15, AR 15 Parts, AR Parts, AR15 Parts, AR-15 Parts

Mil-Spec AR 15 Stock and Buffer Kit

Save 50%
MSRP: $49.95
$24.95
On-Sale
Geissele Super 42 Braided Wire Buffer Spring/Buffer Combo

Geissele Super 42 Braided Wire Buffer Spring/Buffer Combo

Save 18%
$69.95
On-Sale
Magpul PMAG MOE 5.56 30RD - Black

Magpul PMAG MOE 5.56 30RD – Black

Save 29%
MSRP: $13.95
$9.95
On-Sale
Magpul Industries Magpul MOE Enhanced Trigger Guard (FDE)

Magpul MOE Enhanced Trigger Guard (FDE)

Save 10%
MSRP: $9.95
$8.95
On-Sale
JE4 AR 15 Stock

JE4 AR 15 Stock

Save 55%
MSRP: $43.99
$19.95
On-Sale
JP Enterprises .750 Adjustable Gas Block - Black Stainless

JP Enterprises .750 Adjustable Gas Block – Black Stainless

Save 19%
MSRP: $79.95
$64.95
On-Sale
BLACK RIFLE DEPOT AR 15 Stock - LE

AR 15 Stock – LE

Save 35%
MSRP: $16.95
$10.95
On-Sale
STRIKE INDUSTRIES Strike Industries AR 15 Pistol Stabilizer, AR15, AR 15, AR 15 Parts, AR Parts, AR15 Parts, AR-15 Parts

Strike Industries AR 15 Pistol Stabilizer

Save 22%
MSRP: $35.95
$27.95
On-Sale
DIRTY BIRD INDUSTRIES Dirty Bird AR-15 True Mil-Spec Carbine Receiver Extension / Buffer Kit

Dirty Bird AR15 Mil-Spec Carbine Receiver Buffer Kit

Save 30%
MSRP: $49.95
$34.95
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AR-15 Part Kits

Discover our comprehensive range of AR-15 kits at Black Rifle Depot, designed to provide everything you need for building and customizing your firearm. From Lower Parts and Build Kits to Upper Parts and Build Kits, Rifle Build Kits, Pistol Build Kits, and Stock and Buffer Kits, each kit is meticulously curated to ensure top-quality, compatible components that enhance performance and reliability. Find the perfect kit to complete your AR-15 build with confidence and precision, and stay tuned for more Black Friday and Cyber Monday deals on AR-15 parts kits.

 

AR-15 Lower Parts Kits
AR-15 Lower Parts Kits

73 Products

AR-15 Lower Build Kits
AR-15 Lower Build Kits

59 Products

AR-15 Upper Build Kits
AR-15 Upper Build Kits

20 Products

AR-15 Build Kits
AR-15 Build Kits

17 Products

AR-15 Stocks And Buffer Kits
AR-15 Stocks And Buffer Kits

456 Products

Bestselling AR-15 Parts

AR 15 Carbine Buffer Tube Kit

AR 15 Carbine Buffer Tube Kit

MSRP: $39.95
$24.95
BLACK RIFLE DEPOT AR 15 Lower Parts Kit Minus Fire Control Group and Grip, AR 15 Lower Parts Kit, AR 15 Lower Parts, AR 15 Lower Kit, AR 15 Parts, AR15 Parts, AR 15 Accessories, Best AR 15 Lower Parts Kit, AR 15 LPK, American Made AR 15 LPK

AR 15 Lower Parts Kit Minus Fire Control Group & Grip

MSRP: $23.95
$21.95
BLACK RIFLE DEPOT AR 15 Trigger, AR 15 lower parts

AR 15 Mil-Spec Trigger

MSRP: $15.95
$10.95
On-Sale
Global Ordnance 5.56/.223 AR-15 30rd Steel Magazine - Black

Global Ordnance 5.56/.223 AR-15 30rd Steel Magazine – Black

Save 19%
MSRP: $10.99
$8.95
Black Nitride Gas Tube

Black Nitride Gas Tube

MSRP: $18.95
Starting from: $13.95
AR-15 Fire Control Group Trigger and Hammer

AR 15 Fire Control Group (Trigger & Hammer)

MSRP: $29.95
$24.95
AR Tactical Grip with Storage

AR Tactical Grip with Storage

MSRP: $9.95
Starting from: $8.95
On-Sale
Vortex Venom 1-6-24 SFP 30mm AR-BDC3 LPVO w/ 2" Cantilever 30mm Mount

Vortex Venom 1-6-24 SFP 30mm AR-BDC3 LPVO w/ 2″ Cantilever 30mm Mount

Save 49%
MSRP: $469.99
$239.95
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Bestselling Optics & Red Dots

Holosun ARO Advanced Rifle Enclosed Sight

Holosun ARO Advanced Rifle Enclosed Sight

Starting from: $159.99
Vortex Defender-ST Micro Red Dot

Vortex Defender-ST Micro Red Dot

Starting from: $299.99
On-Sale
Vortex Defender-ST Enclosed Solar 3 MOA Red Dot Sight

Vortex Defender-ST Enclosed Solar 3 MOA Red Dot Sight

Save 49%
MSRP: $529.99
$269.95
Vortex Defender-XL Micro 3 MOA Green Dot

Vortex Defender-XL Micro 3 MOA Green Dot

MSRP: $599.99
$399.99
Holosun AEMS Black Anodized 1x 2/65 MOA Illuminated Green Circle w/Dot Reticle Features Lower 1/3 Co-Witness Mount

Holosun AEMS Black Anodized 1x 2/65 MOA Illuminated Green Circle w/Dot Reticle Features Lower 1/3 Co-Witness Mount

MSRP: $505.87
$449.95
Active Safety Designs ARC-Fire Trigger Kit V2 bundled with Holosun ARO 2 MOA green enclosed rifle sight

Active Safety Designs Ambidextrous ARC-Fire Trigger Kit V2 with Holosun ARO 2 MOA Green Dot Sight

,
MSRP: $449.95
$418.99
Holosun Technologies HS510C Open Reflex Circle Dot Sight

Holosun HUD Solar Powered Circle Dot Sight

MSRP: $364.69
$309.99
Active Safety ARC-Fire V2 trigger kit bundled with Holosun ARO 2 MOA red enclosed rifle sight

Active Safety ARC-Fire V2 Trigger Kit with Holosun ARO 2 MOA Red Dot Sight

,
MSRP: $436.95
$404.95
On-Sale
Vortex Venom 1-6-24 SFP 30mm AR-BDC3 LPVO w/ 2" Cantilever 30mm Mount

Vortex Venom 1-6-24 SFP 30mm AR-BDC3 LPVO w/ 2″ Cantilever 30mm Mount

Save 49%
MSRP: $469.99
$239.95
Vortex Venom 1-6×24 SFP 30mm Rifle Scope - AR-BDC3 Reticle

Vortex Venom 1-6×24 SFP 30mm Rifle Scope – AR-BDC3 Reticle

MSRP: $449.99
$299.99
Holosun ARO Advanced Rifle Enclosed Sight

Holosun ARO Advanced Rifle Enclosed Sight

Starting from: $159.99
On-Sale
Vortex Defender-ST Enclosed Solar 3 MOA Red Dot Sight

Vortex Defender-ST Enclosed Solar 3 MOA Red Dot Sight

Save 49%
MSRP: $529.99
$269.95
Vortex Defender-ST Micro Red Dot

Vortex Defender-ST Micro Red Dot

Starting from: $299.99
Vortex Crossfire II 1-4x24 V-Brite MOA LPVO rifle scope with Vortex Sport 1-inch cantilever mount

Vortex Crossfire II 1-4x24mm SFP V-Brite MOA LPVO Rifle Scope w/ Sport 30mm Cantilever Mount

MSRP: $259.99
$199.99
Vortex Sonora 4-12x44 SFP Rifle Scope - Dead Hold BDC Reticle

Vortex Sonora 4-12×44 SFP Rifle Scope – Dead Hold BDC Reticle

MSRP: $209.99
$149.99
Vortex Defender-XL Micro 3 MOA Green Dot

Vortex Defender-XL Micro 3 MOA Green Dot

MSRP: $599.99
$399.99
View All Optics & Sights

Recent Blog Posts

AR-15 Buffer Tube Kits Explained: Carbine vs. A5 vs. Rifle Length
AR-15 Buffer Tube Kits Explained: Carbine vs. A5 vs. Rifle-Length

An AR-15 buffer tube kit is an important part of the rifle’s operating system, but [...]

Read More
06
Nov
Mil-Spec AR-15 Trigger Guide: Grit, Pull Weight & Upgrades
Mil-Spec AR-15 Trigger Guide: Grit, Pull Weight & Upgrades

What Is a Mil-Spec AR-15 Trigger? A mil-spec AR-15 trigger is a conventional single-stage fire [...]

Read More
02
Nov
AO Precision BCG Review: Specs, Coatings & Who It’s For
AO Precision BCG Review: Specs, Coatings & Who It’s For

The AO Precision BCG is worth considering if you want a dependable, mil-spec bolt carrier [...]

Read More
30
Oct
2026 Black Friday Deals: Best AR-15 Parts and Upgrades to Watch
2026 Black Friday Deals: Best AR-15 Parts and Upgrades to Watch

As Christmas approaches, shoppers are getting ready for the holiday season and searching for the [...]

Read More
27
Oct
How to Build an AR-15 Pistol: Parts, Brace & Barrel Guide
How to Build an AR-15 Pistol: Parts, Brace & Barrel Guide

An AR pistol build offers a compact alternative to a traditional AR-15 rifle, but you [...]

Read More
23
Oct
AR-10 vs. AR-15: Key Differences, Calibers & Parts Compatibility
AR-10 vs. AR-15: Key Differences, Calibers & Parts Compatibility

Choosing between an AR-10 and AR-15 requires understanding how each platform differs in performance, handling, [...]

Read More
21
Oct