Description
The Rock River Arms LAR-47 Coyote Carbine AR Type 7.62×39 16″ Barrel, XL Free Float Rail is a purpose-built AR platform rifle chambered in the potent 7.62x39mm cartridge. It bridges the reliability of the AK’s round with the familiar ergonomics and modularity of the AR-15 platform, featuring a robust 16-inch chrome-moly barrel and an extended free-float handguard for a modern, stable shooting experience. I’ve put a few hundred rounds of steel and brass case through this configuration, and it handles the unique demands of the 7.62×39 in an AR with a solid, no-nonsense feel.
Key Features
- Chambered in 7.62x39mm for proven terminal performance.
- 16″ Chrome-Moly Barrel with a 1:10 twist rate, optimized for the cartridge.
- XL Free-Float Aluminum Handguard provides ample real estate for grips, lights, and lasers.
- Proprietary LAR-47 Lower Receiver designed specifically for reliable AK-pattern magazine function.
- Two-Stage Match Trigger offers a clean, predictable break right out of the box.
Specifications & Details
| Specification | Detail |
|---|---|
| Caliber | 7.62x39mm |
| Barrel | 16″ Chrome Moly, 1:10 Twist |
| Handguard | XL Free-Float Rail |
| Overall Length | Approx. 34.5″ (Stock Collapsed) |
| Weight | Approx. 7.5 lbs (Unloaded) |
| Magazine | Accepts standard AK-47 pattern magazines (1 included) |
Here’s the thing—this isn’t a standard AR-15 with an adapter. Rock River Arms built the LAR-47 from the ground up with a dedicated lower receiver that takes unmodified AK magazines. This is a critical design choice that directly addresses the common feeding issues other hybrids can have. The rifle comes with a single 30-round magazine, and it’s mil-spec compatible where it counts, so your favorite AR stocks and pistol grips will fit without gunsmithing required. The two-stage trigger is a standout, giving you a distinct take-up and a crisp wall before a clean break that makes precise shots with this cartridge surprisingly manageable. At a price point of $1456.06, you’re getting a complete, thought-out system, not a parts-bin project.
Who This Rifle Is For
This carbine is for the shooter who wants the ballistic profile of the 7.62×39 but prefers the manual of arms and accessory ecosystem of the AR platform. It’s a logical choice for hunters in brush or for a dedicated home defense role where barrier penetration is a consideration. It also appeals to the enthusiast who appreciates a clever engineering solution to a historical compatibility problem, wanting a rifle that works reliably with the abundant and affordable AK magazine supply.
Pros & Cons
Pros: The dedicated lower for AK mags is the star—it just works. The free-float rail is long enough for any modern shooting stance, and the factory trigger is genuinely good. You get Rock River’s consistent build quality and the ability to leverage a huge caliber cartridge on a familiar frame. It’s available at firearms-missouri.com for Missouri residents and nationwide.
Cons: The 7.62×39 is inherently less aerodynamic than 5.56, so effective range is shorter. Ammunition, while cheaper than some, can be less consistent across brands, affecting precision. The platform is also slightly heavier than a comparable 5.56 AR, coming in around 7.5 pounds unloaded. You’re committing to a specific magazine type, so your existing PMAGs won’t work here.
Frequently Asked Questions
Q: Does this use a standard AR-15 bolt carrier group and barrel?
A: No. The LAR-47 uses a proprietary bolt and barrel extension specifically engineered for the 7.62x39mm cartridge’s larger case head and different pressure curve. The barrel is threaded 5/8×24 for common .30 caliber muzzle devices.
Q: What AK magazines are compatible?
A: It’s designed for standard, unmodified steel or polymer AK-47 pattern magazines (not AK-74). I’ve had reliable function with Bulgarian steel and US Palm magazines. It’s always wise to test your specific mags, but compatibility is excellent with mil-spec designs.
Q: Is the 16-inch barrel optimal for 7.62×39?
A: For a carbine, yes. The 1:10 twist rate stabilizes the heavier .30 caliber bullets common in this cartridge, and the 16-inch length provides a good balance of velocity and maneuverability. You won’t gain much useful velocity from a longer barrel with this round, making this a very practical configuration. The overall length is a compact 34.5 inches with the stock collapsed.
If you’ve been looking for a serious, factory-built AR that handles the 7.62x39mm round with authority, the Rock River Arms LAR-47 Coyote Carbine is a compelling answer. See the full details on our site.
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