AT3 Tactical
AT3 Tactical operates as an online distributor based in St. Michael, Minnesota (not open to public). They stock over 3,000 AR-15 components, handguns, optics, and shooting accessories with fast shipping nationwide. AR-15 Complete Systems & Components: Complete upper and lower assemblies AR-15 kits a...
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Full description and what we offer
AT3 Tactical operates as an online distributor based in St. Michael, Minnesota (not open to public). They stock over 3,000 AR-15 components, handguns, optics, and shooting accessories with fast shipping nationwide.
AR-15 Complete Systems & Components: - Complete upper and lower assemblies - AR-15 kits and furniture kits - Lower receiver components (triggers, grips, buttstocks, buffer tubes) - Upper receiver components (handguards, charging handles, bolt carrier groups, barrels, gas blocks) - Muzzle devices, foregrips, and sights
Handgun Parts & Accessories: - Glock upgrade parts (43x, 43, 48, 19, 17, 26 models) - Sig Sauer parts (P365, P365X, P365XL, P320) - Springfield Hellcat parts and upgrades - Slides, triggers, barrels, magazines, holsters
Optics & Sights: - Red dot sights (including AT3's RD-50 Pro) - Rifle scopes and scope mounts - Backup iron sights - Laser bore sights - Lights and tactical lasers
Specialty Calibers & Conversions: - .300 Blackout AR parts - 9mm AR components - 6.5 Grendel, 7.62x39, .308, .350 Legend, .450 Bushmaster - .458 SOCOM, 5.7x28, 6.8 SPC, 6mm ARC - Conversion kits (.22LR and more)
Accessories & Gear: - Rifle magazines and pistol magazines - Slings and mounts - Bipods and shooting rests - Rifle cases and tactical gear - Eye and ear protection
AT3 manufactures and distributes several house brands alongside major manufacturers:
| Product Line | What It Is |
|---|---|
| STNGR Handguards | Free float rails in various lengths (M-LOK compatible) |
| AT3 Red Dot Sights | RD-50 Pro and other optic options |
| AT3 Triggers & Parts | Lower parts, castle nuts, end plates |
| AT3 Handguards | SPEAR series (9", 12", 15" available) |
Featured Brands Stocked: - Magpul - Aero Precision - Ballistic Advantage - Faxon Firearms - Geissele (triggers) - BCM/Bravo Company - Radian Weapons - Midwest Industries - Troy - Hogue
- •Free shipping on orders over $139
- •Shop by price: Under $50, $50-$100, $100-$200, $200+
- •Shop by color: Pink, Flat Dark Earth, OD Green, Gray, Red, Blue, Coyote Brown, Burnt Bronze, Titanium, Tungsten Cerakote
- •Daily Deals section with rotating discounts
- •AR Bargain Corner for clearance and blemished items
Customer Reviews: Over 19,400 five-star reviews. Customers specifically praise the lifetime warranty, fast shipping, pricing, customer service support, and quality of AT3-branded products.
- •AT3 AR Academy: Free articles on AR maintenance, upgrades, suppressors, hearing protection
- •Free E-Book: "The Official US Army Manual for AR15/M4/M16" with part diagrams, maintenance, cleaning, troubleshooting
- •Installation Videos: Product-specific installation guides
- •Expert Support: 1-888-329-3504 for firearms questions
- •Military Discount: Available for active duty and veterans
- •Affiliate Program: Become a dealer or partner
- •90-Day No-Hassle Returns on non-firearm items
- •AT3 Lifetime Warranty on manufactured parts
AT3 also sells complete firearms including AR-15 lower receivers, AR-10 lower receivers, handguns, rifles, shotguns, and flamethrowers (with firearm finder tool to match your needs).
Firearm Purchase Requirements: - Minimum 18 years old for rifles/shotguns - Minimum 21 years old for handguns/receivers - Must ship to Federal Firearms Licensed dealer in your state - Background check required through receiving FFL - Customer responsible for FFL transfer fees - All firearms sales are final and non-refundable (15% restocking fee if return authorized)
Top searches on their site: handguard, Magpul, buffer tube, charging handle, foregrip, PMAG, sling, stock, buffer.
- •New 2026 Product: STNGR HWK XL Suppressor-Ready Handguard now available in multiple configurations.