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The Battle Arms Development AE-LR-BLK is a stripped lower receiver designed as the foundation for custom .223 Rem and 5.56 NATO AR-15 builds. Machined from quality 7075-T6 aluminum and finished in black anodize, this receiver gives you a clean slate to build exactly the rifle you want. Since it's stripped, you'll add your own trigger assembly, safety selector, magazine release, and stock components through a lower parts kit.
This lower receiver works with industry-standard AR-15 parts, so you have complete flexibility on how you spec out your build. Whether you're going lightweight, precision-focused, or utility-oriented, the AE-LR-BLK accepts all the common aftermarket components. The black anodize finish provides solid corrosion resistance and a clean, professional look that works with any upper receiver.
Battle Arms Development has built a reputation for attention to detail in their receiver designs. Their aluminum work is precision machined with tight tolerances, and they hand-deburr edges and carefully inspect for dimensional accuracy. The multi-caliber marking on the lower means you can use it for .223, 5.56 NATO, and other standard AR-15 calibers, giving your build flexibility down the road if you change barrels.
Because this is a stripped lower with no internal parts installed, assembly requires a lower parts kit and basic tools. The receiver comes ready to accept standard mil-spec trigger groups, controls, and buffer tube hardware. The black anodized aluminum construction balances durability with reasonable weight, and the finish holds up well to regular use and storage.
You'll need a lower parts kit containing the trigger assembly, hammer, disconnector, safety selector, magazine release, and other internal components. You'll also need a buffer tube assembly with stock if building a rifle. The AE-LR-BLK is stripped with none of these parts installed.
Yes, this receiver is designed to accept industry-standard mil-spec AR-15 components. It works with common trigger groups, safety selectors, and other aftermarket parts, giving you full customization options for your build.
The AE-LR-BLK is marked for multi-caliber use, meaning you can build .223, 5.56 NATO, and other standard AR-15 calibers with different upper receivers. The lower itself doesn't restrict caliber choice.
Black anodize is a mil-spec hard coat that creates a durable layer of aluminum oxide on the surface. It resists corrosion, reduces friction internally, and is significantly harder than the base aluminum. It's also easier to touch up than some other finishes if the surface gets scratched.
Stripped lowers let you customize every internal component to match your intended use. You can select the specific trigger, safety style, and grip setup you prefer rather than being locked into whatever the manufacturer chose for a complete lower.
| UPC | 810033782183 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | AE-LR-BLK |
| Caliber/Gauge | .223 REM/5.56 NATO |
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