Description
The Rock River Arms LAR8 308 Large Frame AR-10 Lower Complete National Match Trigger A2 Stock, 2 Stage Trigger is a fully assembled lower receiver designed for building a high-precision .308/7.62x51mm rifle. It’s the foundation for a long-range or tactical build, featuring a premium two-stage trigger and classic A2 stock, ships to Missouri and compliant US states, and is ready for your upper receiver.
Key Features
- National Match Two-Stage Trigger: Provides a clean, predictable break for enhanced accuracy.
- Complete & Ready to Build: Arrives fully assembled with trigger, stock, and grip installed.
- Large Frame AR-10 Compatibility: Engineered for .308 Winchester/7.62x51mm platforms.
- Classic A2 Fixed Stock: Offers a solid, consistent cheek weld and length of pull.
- Mil-Spec Compatibility: Built to widely accepted standards for reliable parts interchangeability.
Specifications & Details
| Specification | Detail |
|---|---|
| Caliber | .308 Winchester / 7.62x51mm NATO |
| Trigger | RRA National Match Two-Stage |
| Stock | A2 Fixed Rifle Stock |
| Grip | A2 Pistol Grip |
| Receiver Material | Forged 7075-T6 Aluminum |
| Finish | Hardcoat Anodized |
This isn’t just a parts kit; it’s a precision-machined foundation. The forged 7075-T6 aluminum lower is the critical starting point for any serious .308 build. At $432.39, it represents a significant value when you consider the included premium trigger—a component that often costs over $100 on its own. The total package weight, with the robust A2 stock, is approximately 3.5 lbs, giving your build a solid, balanced feel from the ground up. When it comes to building a rifle for distance or duty, starting with a quality lower isn’t an option, it’s a requirement. This unit is drop-in ready for your chosen upper, meaning you can move from box to range with minimal fuss—no gunsmithing required for assembly.
Who This Lower Is For
This complete lower is for the shooter who understands that accuracy starts at the trigger and consistency starts at the stock. It’s for the builder planning a dedicated DMR (Designated Marksman Rifle) or a reliable hunting rig for Missouri’s whitetail country. It’s also for the pragmatic owner who wants a robust, no-nonsense .308 platform without the guesswork of sourcing and assembling individual components. If your goal is a rifle that performs when the shot counts, this foundation gets you there.
Pros & Cons
Pros: The included National Match two-stage trigger is a standout, offering a discernible take-up and crisp break that outclasses standard mil-spec units dramatically. The A2 stock provides unwavering consistency, which is a tangible benefit for repeatable shooting positions. Since it’s a complete lower, you avoid the compatibility headaches that can plague AR-10 builds—just mate it with a compatible upper from brands like Rock River Arms, DPMS-pattern uppers, or other large-frame receivers.
Cons: The fixed A2 stock isn’t adjustable, which may not suit shooters who need to fine-tune length of pull. As a complete unit, you’re committed to its configuration; swapping the trigger or stock later means disassembling the factory build. And let’s be honest, the classic profile is functional but lacks the modern modularity of today’s adjustable stocks.
Frequently Asked Questions
Q: Is this lower compatible with any DPMS-pattern .308 upper?
A: Yes, the Rock River Arms LAR8 lower is designed to be compatible with the common DPMS-pattern .308/7.62 large-frame uppers. Always verify fitment with your specific upper receiver manufacturer, but it follows widely accepted specifications.
Q: What is the pull weight of the National Match two-stage trigger?
A: The Rock River Arms National Match trigger typically breaks at a clean 4.5 pounds. The two-stage design features a light, manageable first stage take-up followed by a distinct wall and a crisp second-stage break, which greatly aids shot control.
Q: Does this ship directly to me?
A: No. As a firearm receiver, this lower must ship to a licensed FFL (Federal Firearms License) holder for transfer. We handle the shipping, and your chosen FFL conducts the required background check. FFL transfer required for firearm purchases is a standard, secure process.
Building a capable .308 platform demands a solid starting point. This Rock River Arms complete lower provides exactly that—a precision-machined receiver, a superior trigger, and a stable stock in one proven package. It eliminates the core variables of a build, letting you focus on selecting the barrel and optic that match your mission. Available at firearms-missouri.com for Missouri residents and nationwide.
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