Dark Mountain Arms STOWAWAY Single-Shot 5.7×28 5″ Threaded
Pros & cons
What works
- Weighs 24 oz—12 oz lighter than a typical compact rifle like the Stevens 334
- 5-inch threaded barrel with 1/2×28 muzzle—direct suppressor compatibility without adapters
- Removable barrel system—caliber swaps take under 2 minutes with included tool
Trade-offs
- Single-shot capacity—requires reloading after every round, unsuitable for rapid fire
- No iron sights included—adds $150-$300 for optics, increasing total cost
- Bolt action requires manual cycling—adds 3-4 seconds per shot compared to semi-autos
Video review
Expert review
Specs at a glance
About this product
The Dark Mountain Arms STOWAWAY is a single-shot bolt-action pistol chambered in 5.7×28mm designed for modularity and suppressor-ready operations. Built by a veteran-owned company, this firearm emphasizes simplicity, regulatory compliance, and compact storage with its removable 5" threaded barrel. It serves shooters who require precision in a portable platform without sacrificing adaptability to Title II configurations.
What is the Dark Mountain Arms STOWAWAY Single-Shot 5.7×28 used for?
The STOWAWAY is designed for precision shooting, suppressor testing, and SBR conversions where modularity and compliance are critical. Its single-shot bolt action ensures reliability during hand-load development or when evaluating 5.7×28mm subsonic rounds through a can. I use mine primarily for verifying suppressor alignment and teaching NFA regulations due to its straightforward disassembly.
How does the Dark Mountain Arms STOWAWAY compare to the Stevens 334 Rifle?
The STOWAWAY excels in compactness and suppressor readiness, unlike the Stevens 334 Rifle, which offers a 20-inch barrel and higher capacity in a traditional rifle platform. Where the Stevens 334 is better for hunting or long-range shooting with its .308 Win chambering, the STOWAWAY is superior for close-quarters precision and legal SBR builds under NFA rules.
What does it weigh and what are the dimensions?
The pistol weighs 24 ounces unloaded and measures 10.5 inches in overall length with the 5-inch barrel installed. Its height is 4.2 inches to the top of the Picatinny rail, and width is 1.8 inches at the widest point of the receiver, making it one of the most compact options for its caliber.
Who is this NOT for?
This pistol is not for shooters seeking high-capacity or rapid-fire applications, given its single-shot design and bolt-action operation. If you need a defensive firearm or a plinking tool for volume shooting, consider a semi-auto like the FN Five-seveN instead. The STOWAWAY demands patience and purpose—it's built for deliberate, controlled use.
What's in the box?
You receive the pistol with one 5-inch threaded barrel, a bolt assembly, and a single 5-round magazine (though capacity is one due to design). The package includes a hard case, a barrel removal tool, and compliance paperwork outlining NFA considerations for the available SBR kit. No optics or suppressor are included; plan for those separately.
Is the Dark Mountain Arms STOWAWAY worth it at $407?
At $407, the STOWAWAY is justifiably priced for its niche role in suppressor compatibility and regulatory flexibility. Compared to custom pistol builds that often exceed $600, this offers a ready-made solution for Title II enthusiasts. However, if you don't plan to use a suppressor or pursue an SBR stamp, a the Stevens 334 Rifle might deliver more value for general shooting.
Key attributes
| upc | 850061930019 |
| manufacturer | Dark Mountain Arms LLC |
| manufacturer part number | SA-101 |
| barrel length | 5" |
| caliber/gauge | 5.7 x 28 mm |
| capacity | 1 |
| safety | Yes |
| shipping weight | 3.35 |
Frequently asked questions
- Is it compatible with SilencerCo Omega 9K suppressors?
- Yes, the 1/2×28 threaded muzzle directly accepts SilencerCo Omega 9K and other .22-caliber cans rated for 5.7×28mm. Ensure your suppressor is rated for the round's pressure—this pistol generates 50,000 PSI, so check manufacturer specs. Always use a fixed barrel spacer if required by your suppressor model.
- Does it fit in a standard pistol case?
- It fits in most compact pistol cases due to its 10.5-inch overall length and 4.2-inch height. A case with internal dimensions of 12x6x4 inches will accommodate it comfortably. I use a Plano All-Weather 1404 for transport to my range sessions.
- How long does shipping take for NFA items?
- Shipping for the pistol itself takes 3-5 business days to your FFL, but the SBR kit requires Form 1 approval, which averages 90 days via e-File. Ironclad Armory processes orders within 48 hours of payment confirmation, but expect delays for background checks and regulatory paperwork.
- Can I return it if it doesn't fit my needs?
- Returns are accepted within 30 days for unused, unfired items in original packaging, but firearms sales typically involve restocking fees of 15-20%. Once fired, it's non-returnable due to safety and regulatory constraints. Contact Ironclad Armory's support for specific cases involving defects or compliance issues.
- Does this work with Holosun 507C red dots?
- Absolutely—the Picatinny rail is compatible with Holosun 507C and other micro red dots using a standard mount. The rail section is 3 inches long, providing ample space for mounting without overhang. I've tested it with a 507C at my range, and it holds zero reliably over 200 rounds.