Flat Dark Earth AT3 Tactical AR-15 Parts
FDE AR-15 handguards and quad rails from AT3 Tactical, plus Cerakote lower parts for completely matching your build.
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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 -
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 -
AT3™
AT3™ Mil Spec End Plate for AR-15 – 10 Colors Available
Mil-Spec Steel Endplate for AR15 Lower Receivers This standard endplate is compatible with any mil-spec AR15 lower receiver. Perfect for completing a build that might be missing this component, or...10 Options -
AT3™
AT3™ RD-50 PRO™ Micro Red Dot with Cantilever Riser Mount
Rugged and Reliable, New and Improved. Premium Features and Outstanding Value. The best value in red dot sights just got even better. Optimized for the AR-15, the AT3 RD-50...4 Options -
AT3™
AT3™ Pro Quad Rails – Free Float AR15 Handguards – 4 Lengths Available
The New and Improved Pro Quad Rail - Lightweight, Rigid, and Easier to Install The quad rail is still the gold standard of secure accessory mounting, but they're in...28 Options -
AT3™
AT3 M-LOK Rail Covers – Retro & Old Glory Design – 2 Colors Available
Solid Construction M-LOK Rail Cover That Installs Directly to M-LOK Handguards The AT3 M-LOK Covers are lightweight, slim, single-piece construction designed to work with polymer or aluminum handguards. We include...8 Options -
AT3™
AT3™ Mil Spec AR-15 Buffer Tube – 10 Colors Available
Mil-Spec AR-15 Carbine Buffer Tube Made 6061-T6 aluminum construction with a black anodized finish, with six precision-machined notches to securely lock your stock into position. This buffer tube has a...10 Options -
AT3™
AT3™ Slick Side Upper | Billet Upper Receiver for AR-15
Tough, Sleek, and ready for the AT3 SPEAR M-LOK Handguard Machined from billet aluminum, this unique slick-side upper receiver has no forward assist, includes a dust cover, and matches perfectly...8 Options -
AT3™
AT3™ AR 15 Extended Charging Handle Latch
Upgrade your Charging Handle For Easier Operation The AT3 Tactical Extended Charging Handle Latch is a simple upgrade to any existing mil-spec charging handle. When wearing gloves, or when optics...10 Options -
AT3™
AT3™ AR-15 M-LOK Angled Foregrip – Available in 10 Colors
Low-Profile Angled Foregrip For A Safe, Faster, & More Accurate Follow-up Shots The AT3™ AR-15 M-LOK Angled Foregrip is a great addition to your handguard to allow better positioning of...10 Options -
AT3™
AT3 RD-50™ Micro Red Dot Reflex Sight
Accurate. Dependable. Unbeatable Value in a Small Package. Featuring a crisp 2 MOA red dot reticle, waterproof housing with shockproof internals, and weighing in at only 3.6 ounces, the AT3...2 Options -
AT3™
AT3™ AR-15 M-LOK Handstop – Available in 10 Colors
A Small Addition To Your AR For A More Positive Handling & Improved Weapon Control The AT3 AR-15 M-LOK Handstop is a lightweight and low-profile addition to M-LOK handguards that...10 Options -
AT3™
AT3™ M-LOK Rail Section – 5 or 7 Slots – Made in USA –...
AT3 M-LOK Rail Sections Securely mount lights, lasers, or any other accessories on your M-LOK handguard with our rail sections, giving you all the space you'll need with rock-solid aluminum...20 Options -
AT3™
AT3™ AR 15 Upper Receiver and SPEAR Handguard Combo
Getting Started on Your Next Build? Go Sleek and Lightweight with our Billet Upper and SPEAR M-LOK Handguard. The slim free-float design of the SPEAR handguard enhances accuracy while minimizing...24 Options -
AT3™
AT3 Tactical AR-15 Magazine Catch and Button Assembly
AR-15 Magazine Catch with Button and Spring Whether you're finishing a build or replacing stock parts, your AR-15 is going to need reliable magazine retention. This mil-spec assembly includes the...10 Options -
AT3™
AT3™ Mil Spec Buffer Tube Kit For AR-15 – 10 Colors Available
The perfect kit for your next build - at a price that can't be beat. This Mil-Spec AR-15 Buffer Tube Kit includes the buffer tube, castle nut, lock plate, 3oz...10 Options -
AT3™
AT3™ Pro-Builder™ AR-15 Lower Parts Kit – No Grip or Trigger Assembly
Perfect Lower Parts Kit for the Premium Builds This quality lower parts kit excludes the two most commonly upgraded components - the grip and the trigger assembly (fire control group)....10 Options -
AT3™
AT3™ M-LOK Quick Detach Sling Mount – Made in USA – 10 Colors Available
High-Quality Quick Detach Sling Mount The AT3 M-LOK QD Sling Mount provides your M-LOK handguard with a forward attachment point for quick detach sling swivels. This mount is compatible with...10 Options -
AT3™
AT3 Tactical AR-15 Bolt Catch Assembly with Spring, Plunger, and Roll Pin
Mil-Spec AR-15 Bolt Catch with Hardware The AT3 AR-15 Bolt Catch Assembly has everything you need to upgrade or replace an existing bolt catch on your AR-15 lower. You get...10 Options -
AT3™
AT3 Tactical AR-15 Takedown and Pivot Pin Assembly
AR-15 Takedown and Pivot Pins with Springs and Detents If you're completing an AR-15 lower, you won't get far without a good set of takedown and pivot pins. These mil-spec...10 Options -
AT3™
AT3 Tactical PRO-MOUNT Mini Riser Mount – .83 or 1 Inch Height Lightweight Cantilever...
The PRO-MOUNT is our improved riser for the AT3 RD-50 Red Dot Sight and all other picatinny-mount red dot sights. Lightweight, low-profile, and canted for faster target acquisition. The new PRO-MOUNT...4 Options -
AT3™
AT3 Tactical Standard GI AR 15 Charging Handle – 10 Colors Available
Classic Mil-Spec Charging Handle - Light and Strong - A Great Value Easily chamber your rifle with this classic mil-spec charging handle assembly. Easy to install - just drop into...10 Options -
AT3™
AT3™ Ambidextrous AR15 Safety Selector – 10 Colors Available
A Quick Upgrade to Any AR-style Rifle The AT3 AR-15 Ambidextrous Safety Selector replaces your existing selector all allows for enhanced safety control for both right- and left-handed shooters. This...10 Options -
AT3™
AT3 Tactical AR-15 Safety Selector Assembly with Spring and Detent
AR-15 Safety Selector with Spring and Detent AT3's AR-15 Safety Selector Assembly comes with everything you need to install a new safety or replace your existing parts. This mil-spec style...10 Options
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