HOWA MINI CMPT 6mm ARC 20″ Green HTI Synthetic Bolt Rifle
Pros & cons
What works
- 6.4 lb weight — 1.2 lb lighter than a typical .308 bolt action
- 20-inch threaded barrel ready for suppressors or brakes
- 1:7.5 twist rate stabilizes heavy 6mm ARC projectiles up to 108 grains
- Drilled and tapped receiver saves $75-$100 in gunsmithing costs
Trade-offs
- Proprietary magazine system limits compatibility — aftermarket mags cost $35-$50 each
- Synthetic stock lacks adjustable cheek riser — adds $120-$200 for aftermarket chassis
- No iron sights included — requires optic purchase minimum $150
Video review
Expert review
Specs at a glance
About this product
The HOWA Mini CMPT 6mm ARC 20″ Green HTI Synthetic Bolt Rifle is a compact, threaded-barrel bolt-action platform optimized for modern intermediate-caliber precision shooting. Built around the 6mm ARC cartridge, this rifle delivers ballistic efficiency in a field-ready package that balances weight and length for practical deployment. The green HTI-style synthetic stock and drilled-and-tapped receiver make it immediately optics-capable out of the box.
What is the HOWA Mini CMPT 6mm ARC used for?
This rifle is designed for precision-oriented field shooting where compact dimensions and modern cartridge performance are prioritized. The 20-inch threaded barrel and 1:7.5 twist rate stabilize long-range projectiles effectively, while the 6.4-pound weight makes it suitable for extended carries in varied terrain. It excels as a suppressor-host ready platform for hunters and tactical shooters who need sub-MOA accuracy without full-length rifle bulk.
How does the HOWA Mini CMPT compare to the Stevens 334 Rifle?
The HOWA Mini CMPT outperforms the Stevens 334 in cartridge modernity and threaded barrel readiness, though the Stevens 334 in .308 Win offers greater stopping power for larger game. The HOWA’s 6mm ARC chambering provides flatter trajectories and less recoil than the .308 Winchester, making it superior for precision shooting beyond 400 yards. However, the Stevens 334 costs approximately $150 less and uses more readily available .308 ammunition.
What does it weigh and what are the dimensions?
The rifle weighs 6.4 pounds and measures 35.75 inches in overall length with a 20-inch barrel. The synthetic stock contributes to the light weight while maintaining rigidity, and the 5/8x24 threaded muzzle adds versatility for muzzle devices or suppressors. The compact profile allows for easy maneuverability in blinds or vehicles where longer rifles would be cumbersome.
Who is this NOT for?
This rifle is not ideal for traditionalists who prefer wood stocks or hunters requiring magnum cartridges for elk or moose. The 6mm ARC, while effective on deer-sized game, lacks the energy transfer of larger calibers like .308 Winchester found in the Stevens 334. Additionally, buyers seeking ultra-lightweight mountain rifles under 5.5 pounds should consider carbon-fiber alternatives.
What's in the box?
The package includes one 5-round magazine, the rifle with installed green synthetic stock, and owner’s manual. No optic, rings, or muzzle device are included, requiring additional purchases for complete deployment. The drilled-and-tapped receiver is ready for scope mounting without modification, saving gunsmithing costs.
Is the HOWA Mini CMPT worth it at $582.99?
At $582.99, this rifle offers exceptional value for shooters needing a modern, threaded precision platform without custom gunsmithing. The combination of 6mm ARC chambering, 20-inch barrel, and suppressor-ready threading would cost over $800 if built from aftermarket components. Compared to the Stevens 334 in .243 Win, the HOWA provides more advanced features for approximately $180 more.
Key attributes
| upc | 682146886023 |
| manufacturer | Howa |
| manufacturer part number | HMA6ARCGHBY |
| action | Bolt Action |
| package height | 2.75 |
| number of magazines | 1 5 rd. |
| package width | 7.25 |
| shipping weight | 8.0 |
| product type | Rifle |
| atf type | RIFLE |
| barrel length | 20" |
| caliber/gauge | 6mm ARC |
| capacity | 5 + 1 |
Frequently asked questions
- Is it compatible with standard AR-15 magazines?
- No, the HOWA Mini CMPT uses proprietary Howa mini-action magazines, not AR-15 pattern magazines. The included magazine holds 5 rounds, and aftermarket options are available from brands like MDT or Accurate Mag for extended capacities up to 10 rounds.
- Does it fit in a standard rifle case?
- Yes, the 35.75-inch overall length fits most 36-inch rifle cases with room to spare. For hard cases, look for interior dimensions of at least 38 inches to accommodate scopes or muzzle devices. Soft cases like those from Savior Equipment work well for field transport.
- How long does shipping take?
- Ironclad Armory processes orders within 2 business days, with shipping via UPS or FedEx taking 3-5 additional business days continental US. Expedited options are available for an extra fee, reducing transit time to 2 days.
- Can I return it if it doesn't fit?
- Returns are accepted within 30 days of receipt for unused, unfired items in original packaging. A 15% restocking fee applies, and customers are responsible for return shipping costs. Fired firearms cannot be returned due to federal regulations.
- Does this work with SilencerCo suppressors?
- Yes, the 5/8x24 threaded muzzle is compatible with SilencerCo ASR mounts and direct-thread suppressors like the Omega 300. Always verify thread alignment with a alignment rod before firing to avoid baffle strikes.