# Rock River LAR-BT3 X .308 Elite 18" Semi-Auto Rifle

**Brand:** Rock River Arms
**Category:** Semi-Automatic Rifles
**Caliber:** .308 Win

## Specifications

- **Caliber:** .308 Win
- **Barrel Length:** 18"
- **Capacity:** 30 rounds
- **UPC:** 842834106806
- **SKU:** UCEpzS1As

## Description

The Rock River Arms LAR-BT3 X Series is a semi-automatic rifle chambered in .308 Winchester (also accepts 7.62 NATO), built for competitive shooting, hunting, and general range use. The 18-inch cryogenically treated barrel and direct impingement system are the core of what makes this platform accurate and reliable.

### Key Specifications
- **Model:** LAR-BT3 X Series
- **Caliber:** .308 Win (also accepts 7.62 NATO)
- **Barrel Length:** 18 inches
- **Capacity:** 20 rounds
- **Weight:** 9.5 lbs
- **Finish:** Black stainless steel
- **Manufacturer:** Rock River Arms

### Detailed Features

The direct impingement system cycles reliably while keeping felt recoil on the lower end for a .308 platform. Cryogenic heat treatment on the 18-inch barrel improves dimensional consistency, which translates to tighter groups over sustained fire.

The operator muzzle brake cuts muzzle rise noticeably, making it easier to stay on target for follow-up shots. A match 2-stage trigger gives a clean break, useful in competition or any situation where trigger control matters. The free-float M-LOK handguard clears the barrel entirely and provides rail space for lights, bipods, and other accessories without affecting barrel harmonics.

### Usage Scenarios
1. **Competitive Shooting**: The 2-stage trigger and muzzle brake suit precision-focused competition formats where every shot needs to land.
2. **Hunting**: .308 Winchester has the energy to handle medium to large game at field distances, and the 20-round magazine gives flexibility.
3. **Home Defense**: At 9.5 lbs it is heavier than a carbine, but the semi-auto action and 20-round capacity are effective if space allows.

## Frequently Asked Questions

**Q: What caliber is the LAR-BT3?**

A: The LAR-BT3 is chambered in .308 Winchester and also accepts 7.62 NATO.

**Q: Who makes the LAR-BT3?**

A: The LAR-BT3 is made by Rock River Arms.

**Q: What is the barrel length of the LAR-BT3?**

A: It has an 18-inch barrel.

**Q: How many rounds does the LAR-BT3 hold?**

A: The LAR-BT3 has a 20-round capacity.

**Q: What type of firearm is the LAR-BT3?**

A: It is a semi-automatic rifle built on an AR10-pattern platform.

**Q: Does the LAR-BT3 have an M-LOK handguard?**

A: Yes, it ships with a free-float M-LOK handguard.

**Q: Where can I buy the LAR-BT3?**

A: Compare current vendor offers on this page.

## What Reviewers Say

*Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.*

> I think you got a good deal on that one.
>
> — [sootch00](https://www.youtube.com/watch?v=AVhGjCdZ0fE&t=86s)

> I believe them to be the best rail protectors there are because they're not just rail protectors these actually protect your hands.
>
> — [SmallArmsSolutions](https://www.youtube.com/watch?v=ZXMakCeKJA4&t=118s)

> Like the trigger in it yeah that's a nice trigger.
>
> — [sootch00](https://www.youtube.com/watch?v=AVhGjCdZ0fE&t=92s)

> I absolutely love Chrome so when I got the rifle I was expecting to have a Chrome plated bulk care which I didn't.
>
> — [SmallArmsSolutions](https://www.youtube.com/watch?v=ZXMakCeKJA4&t=208s)

> The only negative aspect of this is a is a standard rifle it it's cycled 100%.
>
> — [SmallArmsSolutions](https://www.youtube.com/watch?v=ZXMakCeKJA4&t=331s)

## What Customers Say

*AI-generated insights from customer reviews*

Feedback on the Rock River LAR-BT3 X in .308 tends to be positive, with a few consistent reservations worth knowing.

Build quality and craftsmanship get the most consistent praise. The materials feel solid, and the overall construction is tight without being finicky. Accuracy at distance is frequently mentioned. Owners report it performs well at 200-400 yards, which covers most hunting and range work.

The semi-auto cycling is smooth, and users who run different ammunition types appreciate the adjustable gas system for dialing in reliability across loads.

The 2-stage match trigger is a recurring highlight. It gives a clean, predictable break that makes accurate follow-up shots easier, and most owners find it ready to use without modification.

On the critical side: price is the most common complaint. The LAR-BT3 X sits at a premium compared to other .308 semi-autos, which is a real consideration for budget-minded buyers. Recoil at 9.5 lbs is manageable for most, but a few shooters mention the stock could absorb more. A quality recoil pad addresses that. Aftermarket compatibility issues with certain accessories also come up occasionally, though the M-LOK handguard keeps the accessory selection broad.

## Pricing

**5 offers available**

| Vendor | Price |
|--------|-------|
| Shootingsurplus Com | $1795.63 |
| Grabagun Com | $1799.99 |
| Kygunco Com | $1803.75 |
| Impactguns Com | $1805.49 |
| Guns Com | $1867.99 |

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*Data from [GunsNation](https://gunsnation.com)*