Description
The DPMS DA-15 is the kind of starting point serious builders reach for when they want a proven, no-nonsense foundation. It's a forged stripped AR-15 lower made from 7075-T6 aluminum, the same aerospace-grade material used across the industry for its strength and dimensional consistency. The forging process aligns the grain of the aluminum, which is a big part of why forged receivers hold up so well under hard use compared to some other methods. The finish is a black hardcoat anodize done to Mil-8625 Type 3 Class 2, so it shrugs off wear and corrosion whether the rifle rides in a truck, a range bag, or a safe.
What the DA-15 Brings to Your Build
This one is marked Multi-Cal, which means you're not boxed into a single chambering. It plays nice with the usual suspects like 5.56 NATO and .223 Remington, and it opens the door to builds in 300 Blackout, .350 Legend, and other standard AR-15 pattern cartridges. The fire selector is machined for SAFE and SEMI positions, and since everything is cut to mil-spec dimensions, you get broad compatibility right out of the gate.
Building on the DPMS DA-15
Keep in mind this is a stripped lower, so it ships as a bare receiver with none of the internal parts. That's exactly what a lot of folks want. You'll add a lower parts kit for the fire control group, detents, springs, and pins, then bolt on your choice of trigger, grip, buffer assembly, and stock or brace. It gives you total say over how the rifle comes together, from a budget-friendly first build to something dialed in with upgraded internals.
DPMS machines these on an automated system built for tight tolerances, which is why the DA-15 has earned a reputation as a dependable value pick. If you've built an AR before, this receiver won't throw you any curveballs. If it's your first one, it's a forgiving, widely supported platform to learn on.
Key Specifications
- Manufacturer: DPMS
- Model: DA-15
- Manufacturer Part Number: DPDA151000
- UPC: 850032424035
- Product Type: Stripped Lower Receiver
- Platform: AR-15
- Material: Forged 7075-T6 Aluminum
- Finish: Black Hardcoat Anodized, Mil-8625 Type 3 Class 2
- Caliber Marking: Multi-Cal
- Action: Semi-Auto
- Fire Selector Markings: SAFE / SEMI
- Color: Black
- Dimensions: Mil-Spec
What’s Included
- DPMS DA-15 stripped lower receiver
Frequently Asked Questions
What parts do I need to finish the DPMS DA-15 stripped lower?
Since the DA-15 ships as a bare receiver with no internals, you'll need a lower parts kit that includes the fire control group, magazine catch, bolt catch, detents, springs, and pins. From there you'll add a buffer tube assembly and your choice of stock or brace, plus a trigger and grip if they aren't already in your kit. Pair it with a complete upper and you've got a functioning rifle.
What calibers will the DA-15 Multi-Cal lower work with?
The Multi-Cal marking means it isn't tied to one specific chambering. It handles common AR-15 pattern cartridges including 5.56 NATO, .223 Remington, 300 Blackout, and .350 Legend, as long as you match the correct upper, barrel, and magazine for your caliber. The lower itself doesn't restrict you.
Is the DPMS DA-15 forged or billet?
It's a forged lower made from 7075-T6 aluminum. Forging aligns the grain structure of the metal, which gives it excellent strength and consistency for the price. It's the go-to choice for most builders who want a durable, no-fuss foundation.
Will standard mil-spec parts fit the DA-15?
Yes. The receiver is machined to mil-spec dimensions, so standard lower parts kits, triggers, grips, buffer tubes, and stocks drop in without fitting or modification. That broad compatibility is a big reason this lower is such an easy platform to build on.





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