Description
You’re on a ridge, the wind is a known factor, and the target is a long way out. You need a rifle that doesn’t just reach—it connects with authority and gets back on target fast. That’s the mission profile for the Rock River Arms LAR-8M 6.5 Creedmoor 20″ Barrel Predator HP, with Brake 20rd Mag. It’s a purpose-built, large-frame AR platform engineered for precision at extended ranges, combining a flat-shooting cartridge with a stable, feature-rich rifle ready for the field.
Here’s the thing—this isn’t a plinker. The LAR-8M Predator HP is a dedicated long-range tool. Chambered in the renowned 6.5 Creedmoor, it leverages that cartridge’s high ballistic coefficient and resistance to wind drift to make ethical shots on game or consistent impacts on steel a repeatable reality. The 20-inch cold hammer-forged barrel provides the optimal velocity for the 6.5 Creedmoor to truly shine, giving you the ballistic performance you paid for. At a price of $1776.59, it positions itself as a serious value in the precision AR-10 market.
Built for the Shot
The foundation is Rock River’s proven LAR-8M lower receiver, designed for reliability. It uses a fully adjustable two-stage national match trigger—a critical feature for precision work. The pull is crisp and predictable, eliminating guesswork and allowing you to focus on fundamentals. The rifle comes standard with a 20-round magazine, giving you ample capacity for a session at the range or a hunt where follow-up shots might be necessary. The included muzzle brake is a key player, significantly reducing felt recoil and muzzle jump. This means you stay on glass, spot your own hits, and get back on target faster. The system is drop-in ready and compatible with many DPMS-pattern .308/6.5 Creedmoor accessories, allowing for straightforward customization if you choose.
Specifications & Details
| Caliber | 6.5 Creedmoor |
| Barrel | 20″ Chrome Moly, 1:8 Twist |
| Overall Length | Approx. 39.5″ |
| Weight | Approx. 9.8 lbs (unloaded) |
| Magazine | 20-round Steel |
| Trigger | Two-Stage National Match |
Pros & Cons
The Upside: The 6.5 Creedmoor chambering in a reliable AR-10 platform is the core advantage. The two-stage trigger is a standout factory feature usually found on more expensive rifles. The muzzle brake makes shooting this capable round surprisingly manageable. The 20-inch barrel length is the sweet spot for balancing velocity and maneuverability.
The Trade-off: With an unloaded weight pushing 10 pounds, this is not a lightweight mountain rifle—it’s a stable platform meant for deliberate shooting. As with all semi-auto precision rifles, ammunition cost is a factor compared to bolt guns; practice ammo is available but pricier than .223. The rifle is available at firearms-missouri.com for Missouri residents and nationwide, but remember, an FFL transfer is required for firearm purchases.
Who This Rifle Is For
This rifle is for the hunter who engages game at 300+ yards and wants a capable follow-up shot. It’s for the precision shooter who enjoys the semi-auto platform for PRS-style competitions or long-range training. It’s also for the prepared citizen who understands the utility of a designated marksman rifle (DMR) platform for defensive use on large properties. If your needs start where standard 5.56 rifles leave off, this is your workhorse.
Frequently Asked Questions
Q: Is this rifle compatible with standard AR-10/.308 PMAGs?
A: The LAR-8M uses its own specific magazine pattern, designed by Rock River Arms for reliable feeding. It is not compatible with Magpul PMAGs for LR/SR-25 platforms without modification. The included 20-round steel magazine is robust and proven.
Q: Can I mount a bipod directly to the handguard?
A: Yes. The free-float aluminum handguard features a full-length Picatinny rail on the bottom, allowing for the direct attachment of a bipod, such as a Harris or Magpul model, or other accessories like a foregrip.
Q: What optic would you recommend for this rifle?
A: To fully utilize the 6.5 Creedmoor’s potential, a variable-power scope with quality glass and a reliable reticle (mil or MOA) is ideal. Look at scopes in the 3-15x or 4-16x range from brands like Vortex, Primary Arms, or Leupold. The rifle’s stable platform rewards good optics.
Ready to extend your effective range with a precision-built American rifle? See the full details on the Rock River Arms LAR-8M Predator HP and explore your purchase options.
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