Rock River Arms

Rock River Arms BLK2135 LAR-15 Pistol .300AAC 8" Barrel M-LOK w/SBA3 Brace

Rock River Arms Rock River Arms BLK2135 LAR-15 Pistol .300AAC 8" Barrel M-LOK w/SBA3 Brace

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This is a serialized firearm.

Rock River Arms

Overview

The Rock River Arms BLK2135 LAR-15 Pistol .300AAC 8" Barrel M-LOK w/SBA3 Brace is a complete rifle. Compare prices from multiple merchants and find the best deal.

Specifications

MPNBLK2135
PlatformAR-15
Caliber300 Blackout
Gas System LengthPistol
Thread Pitch5/8x24
Action TypeSemi-Auto
Twist Rate1:8
ColorBlack
Barrel Length8.0

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Build history on GunPartPicker

Builders on GunPartPicker first added the Rock River Arms BLK2135 LAR-15 Pistol .300AAC 8" Barrel M-LOK w/SBA3 Brace to a build in July 2026.

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