Your search for AR 15 Parts & Ar 15 Parts Kits starts at Black Rifle Depot

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

Popular Brands

  • Magpul
  • Strike Industries
  • Daniel Defense
  • Sons of Liberty Gun Works
  • Aero Precision
  • Dirty Bird Industries

Deals Depot

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

On-Sale
New
Wheeler Delta Series AR-308 LR-308 mag well vise block with non-marring polymer construction and built-in hammer stop

Wheeler Delta Series Magwell Vise Block – AR-10

Save 50%
MSRP: $33.99
$16.95
On-Sale
New
Wheeler AR LR10 variant receiver lapping tool with flexible driver shaft and 220 grit lapping compound

Wheeler Delta Series AR LR/10 Variant Receiver Lapping Tool

Save 33%
$19.95
On-Sale
New
Wheeler Delta Series AR Carbon Multi-Scraper coated stainless steel bolt carrier group cleaning tool

Wheeler Delta Series AR Carbon Multi-Scraper

Save 44%
$12.95
On-Sale
New
Partisan Disruptor black AR-15 forced reset trigger bundled with Magpul PMAG D-60 60-round drum magazine

Partisan Disruptor Black Forced Reset Trigger + Magpul PMAG D-60 5.56 60RD

,
Save 25%
MSRP: $438.50
$329.95
On-Sale
New
Partisan Disruptor black AR-15 forced reset trigger bundled with Holosun ARO 2 MOA red dot sight

Partisan Disruptor Black Forced Reset Trigger + Holosun ARO 2 MOA Red Dot

,
Save 34%
MSRP: $487.22
$319.95
On-Sale
RISE Armament Blitz G2 Slide-and-Snap drop-in AR trigger with interchangeable flat and curved blade options

Rise Armament T24 Blitz G2 Drop-In AR-15 Trigger

Add to cart to see price
On-Sale
Atrius Development 3-position AR-15 selector bundled with RISE Armament LE145 tactical drop-in trigger

Atrius Development 3-Position Super Selector Safety with RISE Armament LE145 Tactical Drop-In Trigger

,
Save 34%
MSRP: $348.99
$229.95
On-Sale
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

Save 46%
MSRP: $259.99
$139.95
On-Sale
Wheeler Delta Series AR Armorer's Professional Kit

Wheeler Delta Series AR Armorer’s Professional Kit

Save 50%
MSRP: $342.99
$169.95
On-Sale
AR-15 trigger and selector bundle with Dirty Bird 3.5lb flat drop-in trigger and Atrius 3-position safety

AR-15 Trigger & Selector Bundle – Dirty Bird 3.5lb Drop-In (Flat) + Atrius Super Selector

,
Save 36%
MSRP: $358.99
$229.95
On-Sale
Ballistic Advantage Premium Series 24 inch 6.5 Creedmoor heavy barrel 1:8 primary view

Ballistic Advantage Premium Series 24″ 6.5 Creedmoor Heavy Barrel 1:8

Save 67%
MSRP: $335.00
$109.95
On-Sale
Ballistic Advantage 18" .223 Wylde SPR Stainless Steel Rifle Length AR-15 Barrel Premium Black Series 1:8 Twist

Ballistic Advantage 18″ .223 Wylde SPR Stainless Steel Rifle Length AR-15 Barrel Premium Black Series 1:8 Twist

Save 32%
MSRP: $220.00
$149.95
On-Sale
Ballistic Advantage 18" .223 Wylde SPR Stainless Steel Rifle Length AR-15 Barrel Premium Series 1:8 Twist

Ballistic Advantage 18″ .223 Wylde SPR Stainless Steel Rifle Length AR-15 Barrel Premium Series 1:8 Twist

Save 32%
MSRP: $220.00
$149.95
On-Sale
Ballistic Advantage Premium Series 20" .223 Wylde DMR Contour 1:8 Stainless AR-15 Barrel

Ballistic Advantage Premium Series 20″ .223 Wylde DMR Contour 1:8 Stainless AR-15 Barrel

Save 37%
MSRP: $300.00
$189.95
On-Sale
Ballistic Advantage 8.3" 9MM Modern EPC Series AR-15 Barrel 1:10 Twist

Ballistic Advantage 8.3″ 9MM Modern EPC Series AR-15 Barrel 1:10 Twist

Save 30%
MSRP: $115.00
$79.95
On-Sale
Ballistic Advantage 16" 5.56 Government Profile Carbine AR-15 Barrel, Classic Series

Ballistic Advantage 16″ 5.56 Government Profile Carbine AR-15 Barrel, Classic Series

Save 24%
MSRP: $185.00
$139.95
On-Sale
SB Tactical SBA3X Brace Only

SB Tactical SBA3X Brace Only

Starting from: $49.95
On-Sale
Rise Armament Super Sporting AR15/10 Single Stage Trigger - DTOM Special Edition

Rise Armament Super Sporting AR15/10 Single Stage Trigger – DTOM Special Edition

Starting from: $94.95
On-Sale
KAK AR-15 A2 Buttstock Kit - Black

KAK AR-15 A2 Buttstock Kit – Black

Save 14%
$59.95
On-Sale
Ballistic Advantage 16" 350 Legend Hanson Carbine Black Nitride Barrel w/ Lo Pro Gas Block

Ballistic Advantage 16″ 350 Legend Hanson Carbine Black Nitride Barrel w/ Lo Pro Gas Block

Save 33%
MSRP: $240.00
$159.95
On-Sale
Vortex Crossfire 3-9x40
Out of stock

Vortex Crossfire 3-9×40

Starting from: $84.95
On-Sale
Microbest Mil-Spec C158 HPT/MPI 5.56 Bolt Carrier Group - Phosphate/Chrome-Lined

Microbest Mil-Spec C158 HPT/MPI 5.56 Bolt Carrier Group – Phosphate/Chrome-Lined

Save 33%
MSRP: $149.95
$99.95
On-Sale
Ballistic Advantage 24" 6.5 Creedmoor Rifle Length Fluted Premium Series Barrel

Ballistic Advantage 24″ 6.5 Creedmoor Rifle Length Fluted Premium Series Barrel

Save 35%
MSRP: $385.00
$249.95
On-Sale
Ballistic Advantage 18" 6mm ARC SPR Profile Rifle AR-15 Barrel, Premium Series

Ballistic Advantage 18″ 6mm ARC SPR Profile Rifle AR-15 Barrel, Premium Series

Save 26%
MSRP: $255.00
$189.95
View More Deals

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

454 Products

Bestselling AR-15 Parts

AR 15 Lower Parts Kit

AR 15 Lower Parts Kit

MSRP: $69.95
$44.95
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
APOC ARMORY AR 15 Low Profile Gas Block - Black Nitride, AR15, AR 15, AR 15 Parts, AR Parts, AR15 Parts, AR-15 Parts

.750 Low Profile Gas Block – Black Nitride

MSRP: $25.95
$19.95
Black Nitride Gas Tube

Black Nitride Gas Tube

MSRP: $18.95
Starting from: $13.95
Global Ordnance 5.56/.223 AR-15 30rd Steel Magazine - Black

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

MSRP: $10.99
$9.99
AR-15 Fire Control Group Trigger and Hammer

AR 15 Fire Control Group (Trigger & Hammer)

MSRP: $29.95
$24.95
View All Best Sellers

Bestselling Optics & Red Dots

Vortex Triumph 2 MOA Red Dot Sight

Vortex Triumph 2 MOA Red Dot Sight

MSRP: $149.99
$99.99
Holosun ARO Advanced Rifle Enclosed Sight

Holosun ARO Advanced Rifle Enclosed Sight

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

Vortex Defender-ST Enclosed Solar 3 MOA Red Dot Sight

MSRP: $529.99
$379.99
Vortex Defender-ST Micro Red Dot

Vortex Defender-ST Micro Red Dot

Starting from: $299.99
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
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
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

MSRP: $469.99
$329.99
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
Vortex Triumph 2 MOA Red Dot Sight

Vortex Triumph 2 MOA Red Dot Sight

MSRP: $149.99
$99.99
Holosun ARO Advanced Rifle Enclosed Sight

Holosun ARO Advanced Rifle Enclosed Sight

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

Vortex Defender-ST Enclosed Solar 3 MOA Red Dot Sight

MSRP: $529.99
$379.99
Vortex Defender-ST Micro Red Dot

Vortex Defender-ST Micro Red Dot

Starting from: $299.99
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
Aim Sports 4X32 Tri Illuminated Scope w/Fiber Optic Sight Mil-Dot Reticle

Aim Sports 4X32 Tri Illuminated Scope w/Fiber Optic Sight Mil-Dot Reticle

MSRP: $114.99
$80.50
View All Optics & Sights

Recent Blog Posts

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
AR-15 Stocks and Buffers Buying Guide: How to Choose the Right Setup
AR-15 Stocks and Buffers Buying Guide: How to Choose the Right Setup

Choosing the right AR-15 stock and buffer system is an important part of building or [...]

Read More
16
Oct
Best AR-15 Lower Parts Kits of 2026: Aero, BCM, Geissele, and Other Leading Brands Compared
Best AR-15 Lower Parts Kits of 2026: Aero, BCM, Geissele, and Other Leading Brands Compared

The AR-15 parts market in 2026 offers a wide selection of lower parts kits, ranging [...]

Read More
14
Oct
New NFA Ruling 2026: What the End of Federal Enforcement Means for Gun Owners
New NFA Ruling 2026: What the End of Federal Enforcement Means for Gun Owners

The National Firearms Act (NFA) has undergone one of its most significant changes in decades. [...]

Read More
12
Oct