Complete A2 Retro AR-15 Lower Receiver

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$233.82

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Allow 3-5 Days to ship · ships to your FFL dealer

SKU: AT3-A2-RETRO-AR15-COMLWR

This item is regulated, therefore your entire order will be shipped to an FFL dealer of your choosing. After you place your order, we will contact you to finalize these details.

Free standard shipping on orders $139+ details
Backed by 3 brand warranties what it covers

AT3 Tactical Complete A2 Retro AR-15 Lower Receiver

Built to Order – Ships Within 3 Business Days

Features

Assembled complete AR-15 lower receiver built on the AT3 AT-15 forged 7075-T6 aluminum lower
A2-style fixed rifle stock and A2 pistol grip give the lower a classic full-size AR-15 rifle setup
AT-15 lower features mil-spec AR-15 compatibility, “Cal Multi” markings, pictogram safety markings, and a deeper-than-mil-spec flared magwell
Includes installed AT3 GI curved trigger, mil-spec lower controls, STNGR 7075 trigger guard, A2 grip, and fixed rifle stock assembly
Rifle-length buffer system pairs with full-size AR-15 upper builds using fixed-stock rear furniture

This complete AR-15 lower receiver is assembled from an AT3-curated parts selection built around function, ease of use, and components commonly purchased together. It combines standard lower controls and an AT3 GI curved trigger with an A2 pistol grip, fixed rifle stock assembly, and rifle buffer system for a traditional A2-style lower setup.

Already have a lower? This same parts package is also available as an unassembled lower build kit without the receiver.

Note: Parts may vary based on availability and may be substituted with components of equal or greater value. Individual branded components are covered by their respective manufacturer warranties.

Warranty Note: Curated by AT3 Tactical. Components in this kit are covered by each manufacturer’s own warranty — AT3’s warranty does not extend to or replace the warranties of the individual parts included. Warranty terms for some component brands may not yet be listed in the warranty tab; contact the manufacturer directly for in-depth and up to date coverage details.

Specifications

Brand: AT3 Tactical
Model: Complete A2 Retro AR-15 Lower Receiver
MPN: AT3-A2-RETRO-AR15-COMLWR
Platform: AR-15
Configuration: Assembled complete AR-15 lower receiver
Lower Receiver: AT3 AT-15 Stripped Lower Receiver – Anodized Black
Lower Receiver Material: Forged 7075-T6 aluminum
Lower Receiver Finish: Type 3 hardcoat anodized black
Lower Receiver Markings: “Cal Multi” with pictogram safety markings
Control Type: Mil-Spec
Trigger: AT3 GI Mil-Spec AR-15 Trigger – Curved
Stock: UTG A2 Fixed Rifle Stock Assembly
Grip: AT3 AR-15 A2 Mil-Spec Pistol Grip
Trigger Guard: STNGR Mil-Spec 7075 Trigger Guard Assembly
Buffer System: Rifle buffer assembly
Color: Black

What’s Included

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Backed by the AT3 Lifetime Warranty!

All AT3 Tactical Brand Products carry a lifetime warranty against manufacturer’s defects.

This includes AT3 Red Dot Sights, Handguards, Iron Sights, and any other product that carries the “AT3 Tactical” or “AT3™” name. For other brands (ex. Magpul or Troy), please refer to the manufacturer’s warranty policy.

In the event that your AT3™ product becomes unusable, we will repair or replace the product at no charge to you.

If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition. The warranty is fully transferable, but we may require information about the original purchase to validate the authenticity of the product.

If your product is in need of warranty service, please contact AT3 Tactical to start the process

Our contact info is available here. To expedite processing, please provide your order information and description of the defect.

Please note: The AT3 Lifetime Warranty does not cover loss, theft, intentional damage or cosmetic damage that doesn’t affect the performance of the product.

Backed by the UTG Lifetime Warranty!

UTG Lifetime Warranty

Leapers, Inc. warrants that all UTG & UTG PRO products conform to published specifications and are free from defects in material and workmanship. We will repair or replace defective products for the duration of the product’s life span. Our dedicated in-house customer service professionals will provide the best-in-class UTG experience.

Please note that this warranty does not extend to products disassembled, damaged from misuse, accidental impact, negligence, natural disasters/accidents, or unauthorized repair or alteration.

Warranty Instructions

Go to Warranty Request under Customer Service on our website.
Fill out the necessary contact and product information to the best of your knowledge.
A purchase receipt is required for all warranty cases and needs to be attached at the end of the form.
Finalize the case by submitting the information to us.
You will hear from one of our customer service reps within 24-48 hours and we will provide you with additional information and instructions.
No return will be accepted without an RA#.
For any questions regarding the process, please feel free to call at (734)542-1500.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

SWARM Warranty

SWARM Warranty

STNGR USA products are warranted to the *original purchaser against any defects in materials and workmanship for the lifetime of the product. STNGR USA has sole discretion to determine manufacturer’s defects. The Swarm Warranty policy does not cover loss or theft. Cosmetic damage or changes that leave the product still in a functional condition, damage from improper use or intentional damages are also not covered by the warranty and will not be accepted. Items that have been modified or in any way altered from the original condition are not covered by the Swarm Warranty.

Eyewear lenses are fully covered by a 1 year scratch warranty. If you scratch or damage your lenses within 1 year of purchasing, STNGR will send you up to 1 pair of replacement lenses. This warranty only applies to the original purchase and not subsequent replacements. You also qualify for **20% off replacement lenses for life. Email support@stngrusa.com to receive your discount code.

Eyewear Lost & Broken Replacement Discount

Sometimes life happens. If you ever break or lose your sunglasses, no matter the reason, you’re covered with a hefty discount. Shoot STNGR an email at support@stngrusa.com and you’ll get you hooked up with an exclusive 30% discount on future replacements.

*The original purchaser may have purchased from any of the following sources: Directly from STNGR (stngrusa.com or stngredge.com) or from an authorized dealer, distributor, or retailer. The original purchaser may be asked to show proof of purchase.

**The 20% discount is subject to replacement lens availability.

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