# Rock River Precision LAR-15M .300 Blackout Tactical Rifle

**Brand:** Rock River Arms
**Category:** AR Style Rifles
**Caliber:** .300 AAC Blackout

## Specifications

- **Caliber:** .300 AAC Blackout
- **Barrel Length:** 16"
- **Capacity:** 30 rounds
- **Finish:** Black
- **Weight:** 113.6 oz
- **Overall Length:** 36"
- **UPC:** 842834119646
- **SKU:** UCEpzS4Vy

## Description

The Rock River Arms LAR-15M CAR A4 is a semi-automatic rifle chambered in .300 AAC Blackout, built on RRA's mil-spec-plus platform. The 16-inch chrome moly stainless steel barrel with a 1:8 twist handles both supersonic and subsonic .300 BLK loads, which makes it well-suited to suppressor use.

### Key Specifications
- **Model:** LAR-15M CAR A4
- **Manufacturer:** Rock River Arms
- **Caliber:** .300 AAC Blackout
- **Barrel Length:** 16 inches
- **Capacity:** 30+1 rounds
- **Weight:** 7.10 lbs
- **Finish:** Black
- **Trigger Type:** Two-stage match trigger
- **Stock Type:** RRA 6-position tactical car stock
- **Sights:** A2 front sight
- **Action Type:** Semi-Auto

### Detailed Features

The two-stage match trigger is one of the more notable inclusions here. It provides a cleaner, more consistent break than the standard mil-spec single-stage trigger, without requiring an aftermarket upgrade. The 1:8 twist rate stabilizes 110-220gr .300 BLK projectiles, giving you flexibility with subsonic loads if you run a suppressor. The direct impingement gas system is standard for the platform; the 6-position collapsible stock adjusts to fit different shooters or body armor setups. The A2 front sight is fixed and usable but most buyers planning to run optics will add a free-float handguard and remove it.

## Frequently Asked Questions

**Q: What caliber is the Rock River Arms LAR-15M?**

A: The LAR-15M CAR A4 is chambered in .300 AAC Blackout.

**Q: Who makes the LAR-15M?**

A: The LAR-15M is made by Rock River Arms.

**Q: What is the barrel length of the Rock River Arms LAR-15M?**

A: It has a 16-inch barrel.

**Q: How many rounds does the Rock River Arms LAR-15M hold?**

A: It has a 30+1 capacity.

**Q: What type of firearm is the Rock River Arms LAR-15M?**

A: The LAR-15M CAR A4 is a semi-automatic AR-style rifle.

**Q: Where can I buy the Rock River Arms LAR-15M?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

Owners of the Rock River Arms LAR-15M in .300 AAC Blackout generally praise RRA's build quality and the two-stage match trigger, which comes pre-installed at a price point where competitors often include a basic mil-spec trigger. Accuracy with subsonic loads gets specific mention from owners who run suppressors, with groups tighter than they expected from a factory rifle. Reliability across both subsonic and supersonic loads is consistently reported as good.

The main criticisms are weight (at 7.10 lbs, it's on the heavier end for a 16-inch carbine), and price relative to similar .300 BLK options. A few owners also note that accessories like handguards and rail systems don't always fit RRA lowers as cleanly as AR lowers from other manufacturers, due to minor tolerance differences.

## Pricing

**1 offers available**

| Vendor | Price |
|--------|-------|
| Grabagun Com | $979.99 |

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