REARDEN ATLAS ALPHA LPRO 1.125X28 NT
The Rearden Atlas Alpha LPRO is a low-profile thread adapter engineered for shooters running compact suppressors and short muzzle devices. Designed around the 1.125×28 internal diameter threading standard, this adapter bridges smaller-diameter suppressors to standard muzzle attachment points, giving you flexibility in your suppressor setup without adding bulk or length to your rig. The low-profile design keeps your gun trim—ideal if you're balancing noise reduction with handling in tight spaces, whether you're hunting thick cover or working a short-barreled rifle at the range.
Built in 4150 steel with a nitride finish, the Atlas Alpha LPRO is built to last. Nitride hardening resists corrosion and wear from the repeated thermal and mechanical stress of firing, and it's easier on your hands than bare steel—no extra maintenance burden. The adapter's compact footprint means you're not adding unnecessary length or diameter to your suppressor's profile, which matters when every inch counts on a short barrel or when you need to keep your sight picture or optic clearance intact.
This is a no-nonsense piece: it does one job and does it right. Pair it with a 1.125×28 suppressor, thread it onto your existing muzzle brake or flash hider, and you've added suppressor compatibility to a gun that might not have had it otherwise. That's the kind of practical versatility that keeps a rifle setup flexible without breaking it apart.
Key Features
- Low-profile design minimizes added length and diameter
- 1.125×28 internal diameter threading for compatible suppressors
- Nitride-finished 4150 steel construction resists corrosion and heat stress
- Allows adapter of smaller-diameter suppressors to standard muzzle platforms
Specifications
| Brand | Rearden |
| Product Type | Suppressor Thread Adapter |
| Internal Diameter Thread | 1.125×28 |
| Profile | Low Profile (LPRO) |
| Material | 4150 Steel |
| Finish | Nitride |
| Color | Black |
Frequently Asked Questions
What suppressors does the Atlas Alpha LPRO fit?
The adapter is designed for suppressors with 1.125×28 internal diameter threading. Verify your suppressor's thread specification before purchase.
Can I use this on a short-barreled rifle?
Yes. The low-profile design is engineered specifically to minimize added length and diameter, making it well-suited to compact setups where you need to preserve handling and sight picture.
What's the finish and how durable is it?
The adapter is finished in nitride, a hardening process applied to 4150 steel that resists corrosion, heat stress, and wear. Nitride finishes are tough and require minimal maintenance compared to bare steel.
Does this adapter come with installation instructions?
No specifications are provided regarding included documentation. Contact Bosque Outdoors directly for installation guidance or adapting details specific to your muzzle platform.

