Description
Rock River Arms has been building ARs in Illinois since the 90s, and the RRAGE line is their way of getting that same shop quality into a no-frills package. The RRAGE LAR-15M pistol takes the formula and shrinks it down to a 7 inch chrome moly barrel with a 1:9 twist, chambered in 5.56 NATO so you can run .223 Rem or 5.56 without a second thought. At 4.8 pounds and just 24.75 inches overall, this thing swings fast and stays out of the way, whether it's riding in a truck, staged at home, or getting worked hard at the range.
What Makes the RRAGE LAR-15M Worth a Look
The lower is a forged RRA LAR-15M, and up top you get an extruded aluminum A4 upper with a port door and a clean slick-side look with no forward assist. A low profile gas block tucks under the 7.25 inch RRAge free float aluminum handguard, which is M-LOK compatible so lights, hand stops, and sling mounts bolt on wherever you want them. The muzzle wears a standard A2 flash hider on 1/2-28 threads, so swapping to a different device down the road is simple. A single stage trigger and A2 grip keep the controls familiar to anyone who's spent time behind an AR.
Why the SBA3 Brace Matters on a 7 Inch Build
Short 5.56 pistols can feel jumpy without support, and that's where the SB Tactical SBA3 earns its keep. It's adjustable, so you can dial in length of pull to fit your build or your gear, and it gives the whole package a much steadier feel than a bare buffer tube. Pair that stability with the light overall weight and you've got a compact platform that stays controllable through fast strings.
Out of the box you get the pistol, one 30 round magazine, and the manual with warranty info. It's a clean, well-executed short AR from a builder with a reputation for tight quality control, and it leaves you plenty of room to make it your own.
Key Specifications
- Manufacturer: Rock River Arms
- Manufacturer Part Number: DS21322
- UPC: 842834123414
- Caliber: .223 Rem / 5.56 NATO (5.56 chamber)
- Barrel: 7" Chrome Moly, 1:9 Twist
- Muzzle Device: A2 Flash Hider, 1/2-28 Threads
- Lower Receiver: Forged RRA LAR-15M
- Upper Receiver: Extruded Aluminum A4 w/ Port Door, No Forward Assist
- Handguard: RRAge Lightweight Free Float Aluminum, 7.25", M-LOK
- Gas Block: Low Profile
- Trigger: Single Stage
- Brace: SB Tactical SBA3 Adjustable
- Grip: A2
- Capacity: 30 + 1
- Overall Length: 24.75"
- Weight: 4.8 lbs
What’s Included
- Rock River Arms RRAGE LAR-15M pistol
- One 30-round magazine
- Owner's manual and warranty information
Frequently Asked Questions
Can the Rock River Arms RRAGE LAR-15M shoot both .223 and 5.56?
Yes. The barrel has a 5.56 NATO chamber, which safely handles both 5.56 NATO and .223 Remington ammunition. That gives you flexibility to run whatever is on the shelf or cheapest by the case.
Is the SBA3 brace on the RRAGE pistol adjustable?
It is. The SB Tactical SBA3 adjusts to multiple positions along the buffer tube, so you can set the length that fits you best. It also adds a lot of stability compared to shooting a short AR pistol with just a bare tube.
Can I mount accessories on the RRAGE LAR-15M handguard?
Yes. The 7.25 inch RRAge free float aluminum handguard is M-LOK compatible, so lights, hand stops, and sling mounts attach directly at multiple positions. The flat top upper also has a Picatinny rail for red dots or backup sights.
How much velocity do you lose with the 7 inch barrel?
A 7 inch barrel will run noticeably slower than a 16 inch carbine, typically in the neighborhood of 2,300 to 2,500 fps with 55 grain loads instead of roughly 3,100. That's still plenty for close range work and range use, which is exactly what this platform is built for. Expect more muzzle flash and bark than a carbine, so a good muzzle device or ear pro strategy is worth thinking about.



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