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AR-15 Parts & Accessories

Find AR-15 parts for performance and personalization at prices that stay in your...
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Find AR-15 parts for performance and personalization at prices that stay in your budget at Cheaper Than Dirt. Browse thousands of the top-rated AR-15 magazines, upper receivers, lower receivers, AR-15 lower parts, sights and other quality accessories. We also carry a great selection of AR-15 ammo, red dot sights and sturdy slings to help fully customize your rifle. Whether you are looking to build or buy the perfect AR, we have everything you need and more!
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AR-15 Magazines

Grab a spare or replacement mag to efficiently feed your AR-15 the ammo it needs.

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Best Seller
UTG AR-15 .223/5.56 NATO Polymer Window Magazine 30 Rounds RBT-AM30 QuickView
Our Low Price $7.49
Top Pick
Magpul PMAG Gen M2 AR-15 Magazine .223/5.56 NATO 30 Rounds Polymer Black MAG571-BLK QuickView
Our Low Price $11.97
E-Lander AR-15/M16 Magazine 30 Rounds 5.56 NATO Steel Maritime KTL Finish Bulk 10 Pack QuickView
Our Low Price $199.95
Find best selling pistol braces.
Grab your pistol brace while you can!
Limited Quantities
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AR-15 Sights & Scopes

Stay on target with ease with our selection of crystal-clear optics.

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Sun Optics USA AR-15 Tactical Carry Handle with Rear Sight Aluminum Black QuickView
List Price $29.97
Our Low Price $23.95
VISM Pro Series AR-15 Flip Up Front and Rear Same Height Sights Black QuickView
Our Low Price $68.61
Leapers UTG ITA Red/Green 4.2" T-Dot Reticle QD Mount Matte Black SCP-DS3840TDQ QuickView
Our Low Price $99.97

AR-15 Barrels

Start your build or upgrade off on the right foot with a high-quality barrel.

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Wilson Combat AR-15 Match Grade 18" Barrel .223 Wylde Urban Super Sniper 1-8 Twist, Stainless, Fluted QuickView
List Price $284.95
Our Low Price $199.95
Diamondback AR-15 Barrel 5.56 NATO 7" Nitride Medium QuickView
Our Low Price $78.53
DoubleStar AR-15 5.56 NATO 16" 1x9 DS-4 Stripped Barrel QuickView
List Price $203.99
Our Low Price $134.95

AR-15 Charging Handle

Upgrade your AR-15 with a brand new ambidextrous charging handle.

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XTS AR-15 Charging Handle With Extended Latch Aluminum Black QuickView
Our Low Price $15.97
XTS AR-15 Standard Aluminum Charging Handle Black CH223 QuickView
List Price $11.97
Our Low Price $9.95
Strike Industries AR-15 Charging Handle with Extended Latch Aluminum Black QuickView
Our Low Price $43.73

AR-15 Gas Tubes, Blocks, Pistons

Pick up a new gas block and gas tube for your next AR build.

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Luth-AR AR-15 Lo-Profile Gas Block .750 Diameter with Set Screws and Roll Pin Black QuickView
Our Low Price $19.33
Luth-AR AR-15 Carbine Length Gas Tube 9.75" Stainless Steel BL-04A QuickView
Our Low Price $12.77
XTS AR .750 Micro Low Profile Gas Block Stainless Steel QuickView
Our Low Price $11.97

AR-15 Muzzle Devices

Counter recoil and unwanted muzzle rise with a high-quality AR-15 muzzle device.

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GunTec AR-15 Slip-Over Fake Suppressor 1/2x28 TPI Aluminum Black 1326 QuickView
Our Low Price $39.97
YHM AR-15 5.56 Crush Washer 1/2" Inner Diameter QuickView
List Price $2.00
Our Low Price $1.29
TacFire Muzzle Brake .223/5.56 1/2" x 28 Flash and Sound Forwarder Black Nitride QuickView
Our Low Price $29.97

AR-15 Receivers & Parts

Build a new upper with one of these high quality upper receivers.

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UTG Model 4/AR15 Receiver Wedge QuickView
Our Low Price $1.29
Strike Industries AR-15 Enhanced Bolt Catch Wide Surface Steel Black SI-AR-EBC QuickView
Our Low Price $14.95
YHM AR-15 Stripped A3 Upper Receiver YHM-110 QuickView
List Price $99.00
Our Low Price $65.00

AR-15 Bolt Carrier Parts

Find the right Bolt Carrier and parts for your AR-15

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Fail Zero AR-15/M4/M16 Complete Bolt Carrier Group 5.56 NATO Full Auto Carrier Nitride Coated Matte Black Finish QuickView
Our Low Price $139.42
KNS Precision AR-15 Firing Pin Retaining Pin QuickView
Our Low Price $7.50
CMMG Inc. AR-15 Bolt Rehab Parts Kit .223/5.56/.300 55AFF68 QuickView
Our Low Price $29.97

AR-15 Handguard

M-LOK, Keymod, Quadrail, Freefloat, Drop-In; find the perfect handguard for your build.

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Aim Sports AR-15/M4 Drop In Quad Rail Hand Guard Carbine Length Aircraft Grade Aluminum Hard Coat Anodized Matte Black Finish QuickView
Our Low Price $29.97
UTG PRO AR-15 Super Slim M-LOK 15" Drop-in Carbine Length Rail QuickView
Our Low Price $129.97
Leapers UTG PRO AR-15 Carbine Length Drop In Quad Rail Hand Guard Aluminum Anodized Matte Black QuickView
Our Low Price $59.97

AR-15 Lower Kits

Finish out your stripped lower receiver with kits designed for the discerning shooter.

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CMMG AR-15 Complete Lower Parts Kit Black 55CA6C5 QuickView
List Price $59.97
Our Low Price $49.95
DoubleStar AR-15 Lower Parts Kit Without Pistol Grip AR270A QuickView
List Price $73.99
Our Low Price $45.95
Rock River Arms AR-15 LPK Lower Receiver Parts Kit QuickView
List Price $74.00
Our Low Price $54.95

AR-15 Lower Parts

Discover upgraded lower parts to step up your next AR-15 build.

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Doublestar Oops! AR-15 Parts Replacement Kit AR791 QuickView
Our Low Price $18.11
Battle Arms Development AR-15 Bolt Catch Detent QuickView
Our Low Price $0.69
Del-Ton AR-15 Essential Rifle Repair Parts Kit LP1103 QuickView
Our Low Price $19.97

AR-15 Trigger Guard

Improve the looks and ergonomics of your AR with one of our well-made trigger guards.

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Strike Industries Cobra Billet Aluminum Trigger Guard Black SI-BTG-COBRA-BK QuickView
Our Low Price $25.95
JE Machine Advanced Operator oversized Trigger Guard QuickView
Our Low Price $6.85
Guntec AR-15 Enhanced Trigger Guard Aluminum Black QuickView
Our Low Price $9.97

AR-15 Triggers

Upgrade your factory trigger with these easy to install AR triggers.

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Rise Armaments Curved Super Sporting Trigger AR15 Drop-In Single-Stage 3.5 lb Pull Anti-Walk Pins DTOM Logo QuickView
Our Low Price $148.86
Rise Armaments Flat Super Sporting Trigger AR15 Drop-In Single-Stage 3.5 lb Pull Anti-Walk Pins DTOM Logo QuickView
Our Low Price $148.86
Timney Triggers The Impact AR-15 Straight Trigger Small Pin Solid 3 lbs QuickView
Our Low Price $181.77

AR-15 Grips

A quality grip can help you stay comfortable and locked in during your trips to the range.

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Leapers UTG 4.7" LowProfile Combat Foldable Foregrip Aluminum Black MNT-GRP002SQ QuickView
Our Low Price $34.97
Magpul AFG2 AR-15 Angled Foregrip Polymer Black MAG414-BLK QuickView
Our Low Price $49.97
AR-15 Vertical Tactical Foregrip Black Leapers UTG 5" Length Battery Storage Ergonomic Ambidextrous RB-FGRP168B QuickView
Our Low Price $11.97

AR-15 Stocks

Better comfort and accuracy. That’s what you’ll get with a well-designed AR-15 stock.

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UTG PRO AR-15 Ops Ready S4 Mil-spec Stock Kit Black RBUS4BM QuickView
Our Low Price $59.97
Leapers UTG PRO AR-15 Mil-Spec 6 Position Collapsible Stock Assembly Black RBU6BM QuickView
Our Low Price $59.97
Adaptive Tactical EX Performance AR-15 Adjustable Stock Mil-Spec Diameter Vented Rubber Recoil Pad Polymer Matte Black AT-02012 QuickView
Our Low Price $60.69
More AR-15 Parts and Accessories
Complete Build Kits
.22 LR Conversion Kits
Slings
Tools
Pin and Spring Sets
Cases and Carriers
Furniture Sets
Cleaning
Mounts
Upper Assemblies
Lower Receivers
Pistol Braces