All AR-15 Parts and Accessories
We are consistently adding new products!
AT3 Tactical offers a wide range of top-rated AR 15 parts and tactical accessories. Build your ultimate AR-15 with our great selection of AR-15 scopes, AR-15 magazines, handguards & quad rails, best red dot sights, lower parts kit, iron sights, upper receiver, AR barrels, and more! We also carry AR-15 accessories from the top brands like Magpul, Aero & more!
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AT3™
AT3™ FU-BAG™ AR-15 Lost Parts Kit – Springs, Detents, Replacement Components
Made an "Oops" with your New Build? You Detent-Launchin', Spring-Losin' Fool, you. We've all been there. Whether it's rolling the dice on that bargain bin LPK in your local...2 Options -
AT3™
AT3™ Castle Nut for AR-15 Buffer Tubes – 10 Colors Available
Secure Your AR15 Buffer Assembly with a Steel Castle Nut This steel castle nut is an essential piece of an AR15 buffer tube/stock assembly. With standard cuts for use with...10 Options -
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Open Box Return-Magpul AMAG 17 Round Stainless Steel Magazine for SIG P320
OPEN BOX RETURN Returned items may be scuffed or scratched, packaging may be damaged. Guaranteed fully functional! Uncompromising Reliability: Magpul AMAG 17 for SIG P320 The AMAG 17 delivers rugged...$33.20Only$25.00 -
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Open Box Return-Agency Arms Drop-In Flat Trigger for Glock 43/43X/48
OPEN BOX RETURN Returned items may be scuffed or scratched, packaging may be damaged. Guaranteed fully functional! Agency Arms Drop-In Flat Trigger for Glock 43/43X/48 Agency Arms takes pride in...$145.00Only$108.75 -
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Open Box Return-Aero Precision ATLAS R-One M5 M-LOK Handguard for AR-10 – Full Top...
OPEN BOX RETURN Returned items may be scuffed or scratched, packaging may be damaged. Guaranteed fully functional! Slim AR-10 M-LOK Handguard from Aero Precision The ATLAS R-One isn't just for...$195.49Only$155.00 -
NEWOn Sale
STNGR Keymod 7 Slot Picatinny Rail Section
STNGR 7 Slot Keymod Rail Sections – Made in USA Customizing your rifle’s Keymod handguard with any accessory is simple with these picatinny adapters from STNGR. Each rail section is...$16.99Only$9.99 -
RECOMMENDED
Breek Arms WARHAMMER Mod 2 Ambidextrous AR 15 Charging Handle
Ultra-Slick, Ultra-Affordable Ambidextrous AR15 Charging Handle If you're looking for a charging handle upgrade that's above and beyond the mil-spec, with features that rival the big brands, at a price...4 Options -
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Open Box Return – UTG Pro Super Slim 15 Inch M-LOK Drop-In Carbine AR-15...
OPEN BOX RETURN Returned items may be scuffed or scratched, packaging may be damaged. Guaranteed fully functional! Full Length Drop-In Handguard for Carbine Length AR-15 This Super Slim drop-in handguard... -
On Sale
Closeout: Faxon Firearms 20 inch Government/Socom Barrel – 5.56 NATO – Rifle-Length – 4150...
Combination Of The Standard M4 Profile & A Heavy Profile The Faxon Firearms 20 inch Government/Socom Barrel is the combination of the standard M4 profile and a heavy profile that...$174.95Only$149.99 -
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Open Box Return-Zaffiri Precision Compensator for Glock 9mm Gen 1-5 Pistols – 1/2×28 –...
OPEN BOX RETURN Returned items may be scuffed or scratched, packaging may be damaged. Guaranteed fully functional! Upgrade Your Glock with Zaffiri Precision Blowhole Compensator Enhance your shooting experience with...$89.99Only$70.00 -
RECOMMENDED
Hexmag Series 2 5.56 30rd AR 15 Magazine
An All-around Magazine for Any Shooter - Lightweight and Extremely Durable The Hexmag Series 2 5.56 30rd Magazine is the next generation in AR-15 Magazines featuring the iconic Hexture™ design...4 Options -
Breek Arms Micro Warhammer AR-15 Charging Handle
Snag Free Ambidextrous Charging Handle - Breek Micro Warhammer The Breek Arms Warhammer is a hit. Super affordable, slick look and feel, and deeply-set latches with a super quick release...4 Options -
AT3™
AT3™ SPEAR M-LOK Handguard for AR-15 – 9, 12, & 15 inch Lengths
The AT3 SPEAR™ is our best, most secure handguard. Simple to install, lightweight, and easy on the wallet. The slim free-float design enhances accuracy while minimizing the weight of...24 Options -
Hexmag Shorty 10 Round Compliant AR-15 5.56 Magazine
10 Round AR-15 Magazine with 20 Round Look The "Shorty" 10/20 AR-15 Hexmag brings a 20 round look and feel, with a limited 10 round capacity for compliance with state...4 Options -
Hexmag Shorty 20 Round AR-15 5.56 Magazine
Compact 20 Round AR-15 Polymer Magazine The "Shorty" AR-15 Hexmag features modern polymer construction, improved feed lips, and a reliable anti-tilt follower. The magazine's unique Hexture™ design offers superior grip,...4 Options -
CMMG AR-15 .22 LR Stainless Steel Conversion Kit + One 10 Round Magazine –...
Spend a day at the range without spending a fortune! The CMMG Stainless Steel 22LR Conversion Kit with 1 ten round Magazine. This kit is great for states that place... -
Hexmag AR10/SR25 10rd Magazine – .308 WIN – 7.62 NATO
Reliable Round Limited AR10/SR25 Magazine Featuring a high-visibility follower and unique hexagon pattern, the Hexmag AR10/SR25 magazine provides excellent reliability and superior build quality. Built for a wide variety of...2 Options -
Breek Arms .308/AR-10 WARHAMMER Mod 2 Ambidextrous Charging Handle
The Ultra-Light Charging Handle for Your AR-10/LR308 Pattern Rifle If you're going to trick out your new AR-10, the charging handle is the perfect place to start. Problem is, the...4 Options -
Breek Arms Micro WARHAMMER Charging Handle for .308/AR-10
Sling Friendly AR-10 Charging Handle The Warhammer Micro Charging Handle for AR-10 platforms brings ambidextrous function to your battle rifle, with low profile, short throw levers to prevent snags on...4 Options -
Bravo Company Gunfighter 1″ QD Sling Swivel
Bravo Company Gunfighter 1" QD Sling Swivel The Bravo Company QD Heavy Duty Sling Swivel is designed for use with 1" slings. Tumble deburred and sandblasted before plating, this swivel... -
Armaspec SFT45/90 Ambi AR 15 Safety Selector – ARM113
Armaspec 45 and 90 Degree Ambi Safety The Armaspec SFT45/90 allows you to modify your AR-15 safety exactly how you like it. This AR-15 safety upgrade features a double-sided steel...6 Options -
DEMO Glock 17 Gen5 9mm Pistol – 17 Round – 3 Magazines
Easy To Use & Easy To Clean Pistol Trusted By Professionals The Glock 17 Gen5 9mm Pistol with Front Serrations features a new frame design that removed the finger grooves... -
DEMO Glock 43 Subcompact 9mm Pistol – 6 Round – 2 Magazines
Test Fired Glock 43 Subcompact Pistol The Glock G43 Subcompact Pistol is an ultra-concealable, accurate, and a fantastic handgun for all shooters regardless of one's hand size. Engineered based on... -
Glock OEM 33 Round Magazine – 9mm
Make Range Day Better with the 9mm Fun Stick! Each GLOCK magazine is constructed from a hardened steel insert encased in high tech polymer to protect the magazine and prevent...2 Options2 Options2 Options
We are consistently adding new products!
AT3 Tactical offers a wide range of top-rated AR 15 parts and tactical accessories. Build your ultimate AR-15 with our great selection of AR-15 scopes, AR-15 magazines, handguards & quad rails, best red dot sights, lower parts kit, iron sights, upper receiver, AR barrels, and more! We also carry AR-15 accessories from the top brands like Magpul, Aero & more!
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