Description
There are plenty of packable survival rifles out there, but most of them stick you with a rimfire cartridge. The Dark Mountain Arms Stowaway takes a different road. It chambers the 5.7x28mm, a centerfire round that hits noticeably harder than .22 WMR while barely adding any weight to your kit. At 2.8 pounds with the barrel attached, this thing weighs less than most people's water bottle setup, and when you pull the barrel off, the whole rifle packs down to about 16.65 inches. That fits inside just about any daypack, duffel, or gear bin you already own.
How the Stowaway Comes Apart
The takedown system is refreshingly simple. The barrel, barrel lock, and bolt separate from the receiver without tools, and reassembly takes well under a minute once you have done it a couple of times. The bolt sits on the left side of the receiver, keeping your firing hand in place while you cycle, and the single action trigger includes a half-cock position for an extra margin of control. The hollow pistol grip even gives you a spot to stash spare rounds.
Built to Run Suppressed and Optics Ready
The 16 inch barrel comes threaded 1/2×28 from the factory, and the light 5.7x28mm cartridge is a genuinely pleasant round to shoot with a can attached. Up top, a full length Picatinny rail handles red dots or a compact scope, whichever suits your use. Aluminum, steel, and glass filled nylon construction with a corrosion resistant finish keeps it ready for trail duty, and if you ever want to change things up, Dark Mountain designed the platform so a caliber swap only takes a new barrel and bolt face. Made in the USA by a veteran owned company out of North Carolina, the Stowaway is a smart pick for hikers, campers, and anyone who wants a capable rifle that stays out of the way until it is needed.
Key Specifications
- Manufacturer: Dark Mountain Arms LLC
- Model: Stowaway Rifle
- MPN: SA-100
- UPC: 850061930002
- Caliber: 5.7x28mm FN
- Action: Single Shot Bolt Action
- Capacity: 1 Round
- Barrel Length: 16.65"
- Muzzle Thread: 1/2×28
- Overall Length (Assembled): 31.78"
- Length (Taken Down): 16.65"
- Weight: 2.8 lbs
- Optic Mount: Picatinny Rail
- Materials: Aluminum, Steel, Glass Filled Nylon
- Safety: Single Action with Half-Cock Position
- Finish: Black, Corrosion Resistant
What’s Included
- Stowaway rifle (barrel, receiver, barrel lock, and bolt)
- Cable lock
- Owner's manual
Frequently Asked Questions
How small does the Dark Mountain Stowaway pack down?
With the barrel detached, the whole rifle measures about 16.65 inches and stands under 7 inches tall, so it slips into most backpacks with room to spare. At 2.8 pounds total, you will barely notice it in your pack. Reassembly takes no tools and can be done in under a minute.
Is the Stowaway rifle suppressor ready?
Yes, the barrel comes threaded 1/2×28 right from the factory, so most 5.7 and rimfire-rated cans thread straight on. The 5.7x28mm cartridge suppresses nicely, especially with subsonic loads, making this a quiet and fun little rifle to run.
Does the Dark Mountain Stowaway come with sights?
It does not ship with iron sights. Instead, it has a full length Picatinny rail on top of the receiver, so you can mount a red dot, compact scope, or clamp-on backup sights of your choosing. A lightweight red dot pairs really well with the rifle's minimalist, ultralight character.
Can I convert the Stowaway to a different caliber?
Yes, that is one of the platform's best tricks. Dark Mountain Arms designed the Stowaway so a caliber change only requires swapping the barrel and bolt face, and the company offers a 9mm option alongside the 5.7x28mm. It keeps one receiver doing double duty without buying a whole second rifle.





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