AT3™ AT-15 Stripped Lower Receiver - Anodized and Cerakote

from$79.99$99.99Save $20.00
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Matching Trigger Guard: Choose matching trigger guard
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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.

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Product description

AT3 Tactical AR-15 Cerakote Stripped Lower Receiver

The AT-15 is the AT3 Tactical take on the classic AR-15 lower receiver. This lower starts with a solid base of forged 7075-T6 aluminum construction. The same durable, lightweight material used from the beginning of the AR-15’s adoption as the M16 rifle ensures the AT-15 is as tough as they come. Plus, the AT-15 comes in a classic anodized black, and a full range of Cerakote colors that you can match with all your favorite colored parts from AT3 Tactical.

The AT-15 also features a deeper magwell flare than mil-spec lowers, making it easier to reload. This lower receiver serves as the perfect starting point for your next build. Add a lower parts kit of your choice, or piece together something that’s exactly to your specifications. The AT-15 will accept any part compatible with a mil-spec lower receiver. Plus, you can save a little extra cash right away if you add an AT3 AT3 Enhanced Trigger Guard when you buy now!

Want to go for a full receiver set and save even more? Check out our AT-15 receiver set, complete with lower, trigger guard, and upper. Add in a handguard as well with the M-LOK Receiver Set, or the Quad Rail Receiver set. We’re offering standing discounts on each kit, so get what you want and save big.

Durable Construction and Finishes

  • Forged 7075-T6 Aluminum construction for tried-and-true toughness that won’t let you down
  • Cerakote in FDE, ODG, Pink, Red, Burnt Bronze, Tungsten, and Titanium, or a classic black anodized finish resist scratching and wear over time
  • Mil-Spec dimensions ensure compatibility with a huge variety of AR-15 parts and accessories

Customizable

  • Compatible with all mil-spec AR-15 components and numerous upgrades like triggers, pistol grips, safety selectors, and more
  • Save a little extra on a color-matched AT3 Enhanced Trigger Guard when you add one!
  • Color coordinate your builds with AT3 parts – we use the same Cerakote colors for all finishes we offer on all AR parts

Available Finishes

  • Black: Type 3 Hardcoat Anodized
  • Flat Dark Earth: H-267 Magpul® Flat Dark Earth
  • OD Green: H-232 Magpul® OD Green
  • Pink: H-224 SIG™ Pink
  • Burnt Bronze: H-148 Burnt Bronze
  • Tungsten: H-237 Tungsten
  • Titanium: H-170 Titanium
  • Red: H-167 USMC Red

Specifications

  • Platform: AR-15
  • Material: Forged 7075-T6 Aluminum
  • Markings: “Cal Multi”, Pictogram Safety
  • Compatibility: Works with standard AR15 components and magazines
  • Weight: 8.35oz

FAQ

Is this lower Mil-Spec?

The AT-15 uses 7075-T6 aluminum construction, and is availbale in a type 3 hardcoat anodized finish, which are mil-spec. The AT-15 also accepts all mil-spec AR-15 components. Most triggers, pistol grips, lower parts, buffer tubes, and upper receivers will have no issue fitting into this receiver. With the Cerakote options, the thickness of finish in some areas may make the fit a bit tighter.

What is Cerakote?

Cerakote is a ceramic paint and adheres to polymer and metal very well. Since the the lowers are painted, some wear marks may be seen on areas of heavy use. AT3 doesn’t warranty against Cerakote inconsistencies or the wearing of coatings. Our parts are Cerakoted using the official Cerakote colors.

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Customer reviews 19

obeygoza Verified buyer
Love the ODG lower🔥🔥🔥
obeygoza Verified buyer
Love the ODG lower🔥🔥🔥
fourfivesix Verified buyer
Absolutely gorgeous in fde and fits perfectly.
kempfish Verified buyer
I’m new to rifle building. Did a contest with some coworkers to see who could build the cheapest functioning rifle. We’ll have learning how to do it and discovering how easy it is I went down a rabbit hole. I got a brunt bronze lower for my second build and I was quite pleased with how good the coating looks. No burs anywhere. Built it out and I’ve been so pleased with this lower. It’s as described and was packaged wonderfully. I can’t want to get another one. I’d love if a coyote color was released. My wife now wants me to build her one but she wants chameleon if that were ever to be released through AT3. I will be a repeat costumer.
calebwoodcreative.com Verified buyer
Just got the Burnt Bronze color in the other day and this thing is BEAUTIFUL!!! Thanks guys!
mitch.weersing Verified buyer
Disclaimer: This was my first build and I have no others to compare to at this point.

Milspec to a tee, light weight, everything fits snug and the FDE color looks great. Giving 4 stars because the cerakote feels fragile. When I brought it to the engraver to put my trust name on it, the laser burned off a good portion of the coating surrounding the letters. Engraver felt bad about it and replaced my lower at their expense (got a free engraved lower out of it for another SBR! Woo!). When I brought back the replacement a couple weeks later, the laser settings were adjusted and it came out much better but still not perfect. When going to build, I tried to protect it as best I could with towels around finish and using brass/polymer hammer but still managed to ding it up in a couple spots tapping in my bolt catch and FA roll pins.

Could have just been a gun smith with an overpowered laser and my novice abilities but the laser had 2 attempts and I swear I was careful. This could just be true of all cerakoted parts as well so I cant say there's anything wrong with the AT3 cerakote. Just be careful when you're assembling! Other than that, great stripped lower (I got 2 of them!).

Side note to potential buyers: WATCH FOR SALES! I paid $[link removed] in March 2026 for both of FDE lowers, it's on sale now in April for $[link removed]!
Monreal Verified buyer
Great quality and awesome look to my build. This is my 2nd build with AT3. They really are the go to.
dannybradham Verified buyer
Excellent lower receiver! Fit and finish are awesome. It has nice tight fit with upper even without take down pins installed. The bonus is the addition of threaded hole where rear take down pin boss from upper mate up. This way as receiver set wears over time you can tighten up the fit with a jack screw (with plastic tip) in that extra threaded hole coming up through where the grip mounts. Love this feature on lowers.

AT3 Tactical · Thanks for the fantastic feedback, Daniel—we're thrilled you love the tight fit and innovative jack screw feature on the AT-15 Stripped Lower that keeps things secure even as it wears in!

robert.e.friel Verified buyer
The lower looks nice
Everything is in order
blackley21 Verified buyer
Great color match to complete my quad rail match. Very pleased with AT3 from Cali.
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