Rock River Arms LAR-15 Tactical Semi-Auto Rifle w/MBUS Sights

Out of stock - Join the waitlist to be emailed when this product becomes available


In our opinion, a Rock River LAR-15 is simply the best value AR-15 long gun chambered in a .223/5.56 NATO on the market.  Rock River Arms started making AR-15 rifles back in the late 1990s after years of doing custom work on 1911s.  They quickly earned a reputation for making excellent guns and components.

We have taken Rock River’s LAR-15 M4 Mid Length Carbine and added the following upgrades:

  • UTG Slim 15″ Handrail with M-LOK
  • Low Profile Gas Block
  • Magpul MBUS Front and Rear Flip-up sights

The combination of these options provide an excellent tactical rifle that is ready to be fired right out of the box.


Additional Information
Manufacturer Rock River Arms, Inc.
Model LAR-15 Tactical Rifle
Type Rifle: Semi-Auto
Caliber .223/5.56mm NATO
Action Semi-Automatic
Capacity 30+1
Receiver Forged A4
Trigger RRA Single Stage
Barrel Length 16″ Fluted Chrome Moly HBAR 1:9 Twist
Overall Length 34″ Retracted/36″ Extended
Weight 7.1 lbs
Magazines One 30-Round Magpul PMAG
AccessoriesUTG 15″ Handrail (M-LOK) & Magpul MBUS Flip-up Sights
Product UPCBB1501

Additional Information Content

Modern Warriors

We started Modern Warriors for the sole purpose of providing a less expensive way to enjoy our love of buying and shooting some really cool stuff. What started as a hobby has turned into a business where we have developed the experience and ability to help you enjoy our same hobby and save you money in the process.

We specialize in tactical weapons, including suppressors, short barrel rifles and full auto weapons. We have routine experience in shooting the weapons we carry, so if you want our opinion on how a weapon operates, we will gladly provide it. We also have expertise working with licensed professionals in setting up gun trusts, which is an ideal way of purchasing, owning and operating any weapon restricted by the National Firearm Act. Don’t let the word “trust” scare you. It is very easy to set one up if you have the right help.

Learn More