Description
The Rock River Arms BT-6 338 Lapua Magnum Semi Auto 24″ Barrel, 2 Stage Trigger, MagPul PRS Stock is a purpose-built, long-range precision rifle system. It’s a semi-automatic platform engineered to deliver the power and reach of the .338 Lapua Magnum cartridge with the speed of a gas-operated action, designed for consistent engagement at extreme distances where bolt guns fall behind.
Key Features:
- Chambered in the legendary .338 Lapua Magnum for terminal performance beyond 1500 yards.
- Semi-automatic operation allows for rapid follow-up shots on distant or moving targets.
- 24-inch, heavy-contour, chrome-moly barrel provides optimal velocity and stability.
- Two-stage match trigger offers a crisp, predictable break for precise shot control.
- Fully adjustable MagPul PRS Gen3 stock ensures a perfect, repeatable cheek weld and length of pull for any shooter.
- Rigid, free-float handguard accepts M-LOK accessories for mounting bipods, lights, or lasers.
When it comes to reaching out and making an impact at distances where wind and drop become serious calculations, this rifle is built for the task. The system is designed around a robust, large-frame AR platform that handles the .338 Lapua’s substantial pressure. The included two-stage trigger isn’t an afterthought—it’s a critical component for managing recoil and executing a clean break. That said, this is a serious tool for a serious mission. With an overall length of approximately 44 inches and a weight pushing 15 pounds unloaded, it’s a stable shooting platform, not a run-and-gun carbine.
| Caliber | .338 Lapua Magnum |
|---|---|
| Barrel Length | 24 Inches |
| Operation | Gas-operated, Semi-Automatic |
| Trigger | Two-Stage Match |
| Stock | MagPul PRS Gen3 |
| Magazine Capacity | 10 Rounds (Detachable Box) |
Who is this for? The BT-6 is for the precision rifleman who needs to maintain a high rate of effective fire at extreme range. Think competitive long-range shooters, tactical professionals requiring a designated marksman rifle (DMR) with overwhelming power, or dedicated hunters pursuing game across vast, open terrain. It’s for situations where a single, well-placed shot may not be enough, and the capability for a fast second or third round is non-negotiable.
Pros & Cons:
Pros: Delivers the long-range authority of .338 Lapua in a fast-handling semi-auto format. The match-grade trigger and fully adjustable PRS stock provide an excellent out-of-the-box foundation for precision. The M-LOK handguard offers modern accessory mounting. It’s a robust, mil-spec compatible system built for hard use.
Cons: The $4981.99 price point reflects its specialized nature. Ammunition cost for .338 Lapua is significant, and the rifle’s substantial weight and length make it less maneuverable in tight spaces. Recoil, while managed by the gas system and muzzle device, is still formidable.
Frequently Asked Questions
Q: What optics and mounts are recommended for this rifle?
A: You’ll need a high-magnification, first-focal-plane scope from brands like Vortex, Nightforce, or Leupold, built to handle heavy recoil. A 20- or 30-MOA cantilever mount or base from American Rifle Company or Spuhr is recommended to maximize elevation adjustment for extreme distances.
Q: Is this rifle difficult to maintain?
A: Not at all. The gas-operated system is familiar to anyone with an AR-platform rifle. Field stripping for basic cleaning is straightforward, and no gunsmithing is required for routine maintenance. The large-frame design simply scales up the proven AR-10 pattern for the .338 Lapua cartridge.
Q: Can I use different magazines?
A: The rifle ships with a 10-round magazine. It is designed to be compatible with standard .338 Lapua Magnum AR-style magazines from reputable manufacturers, ensuring you have options for range use or hunting compliance. This rifle is available at firearms-missouri.com for Missouri residents and nationwide, with an FFL transfer required for firearm purchases.
If your mission demands authoritative long-range performance with the tactical advantage of semi-automatic fire, the Rock River Arms BT-6 defines that capability. Explore the full details on our site.
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