Macbros
In 1997, Allan and Dale Mack turned their passion for hunting and shooting sports into a manufacturing business. Growing up in the Black Hills of South Dakota, both brothers built and modified guns in their spare time. They started Horizon Machine Inc. with a single CNC machine and themselves as the...
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Business Details
Full description and what we offer
In 1997, Allan and Dale Mack turned their passion for hunting and shooting sports into a manufacturing business. Growing up in the Black Hills of South Dakota, both brothers built and modified guns in their spare time. They started Horizon Machine Inc. with a single CNC machine and themselves as the only employees.
26 years later, they've scaled to a 30,000 square foot facility with over 40 CNC machines and 24 full-time staff members. In 2007, they launched Mack Brothers to design and sell their own firearms products.
Mack Brothers offers three main suppressor lines, each engineered for specific use cases:
Vapor Rimfire Suppressor — 100% titanium construction rated for .22 LR, .22 Mag, .17 HMR, and 5.7×28. Weighs just 4.3 oz, 5 3/8" long. User-disassembled for field cleaning. $420
Zenith Suppressor — 30 caliber magnum-rated with a fully welded baffle stack (no main tube). Titanium construction, 9 oz, 6 1/4" long. Comes with industry-standard 1 3/8"-24 muzzle cap plus interchangeable adapters. $850
Helium Suppressor — Centerfire .30 cal with titanium body and 17-4 stainless blast baffle. Quick detach or direct thread mount options. 13.5-15 oz depending on config, 7.25-8" long. $799-$850
In 2024, Mack Brothers ceased production on MB762 (.30 cal) and MB556 (.223) suppressors but continues to service and repair them.
Built on the Remington 700 footprint with meaningful upgrades:
- •Side bolt stop positioned above stock line for better ergonomics
- •Self-indexing recoil lug adds thread length for barrel contact
- •Nitrided bolt body reduces friction in the raceway
- •Available in stainless steel or titanium
- •Short or long action, DBM or BDL, single shot or muzzleloader configurations
Fully customizable builds starting at $4,499. Four main platforms:
| Model | Focus | Stock | Base Price |
|---|---|---|---|
| EVO THR | Classic hunting lines | Manners MCS-T carbon fiber | $4,499 |
| EVO CHR | Compact, adjustable | Manners CS carbon fiber | $5,399 |
| EVO EXTREME | Lightweight option | Manners LRH w/ ARCA rail | $5,399 |
| MAMMOTH | Smokeless muzzleloader | Manners LRH carbon fiber | $5,499 |
All standard builds include: - Stainless match barrel (titanium upgrade available) - TriggerTech trigger - Threaded muzzle with protector - Cerakote finish (multiple colors available) - Premium SKB travel case
Beyond complete builds, Mack Brothers handles:
- •Chambering and barrel work
- •Threaded muzzles and muzzle brake installation
- •Cerakote finishing (barreled actions or full packages)
- •Action bedding to stock
- •Trigger upgrades
- •Custom laser engraving (names, dates, custom designs)
- •Stock installations (including customer-supplied stocks)
- •Bottom metal upgrades on existing Mack Bros builds
- •Brands in rotation: Manners Composite Stocks, TriggerTech, Arrowhead Rifles, Leupold, Vortex, Nightforce, Badger Ordnance, Wyatt's Outdoor, Hawkins Precision, Bartlein, Shilen, CarbonSix.
If you own a specific scope or stock you want to use, send it in and they'll install it on your build.
Mack Brothers operates Horizon Machine Inc., their parent CNC facility. What started as precision engineering for suppressors evolved into a full-service shop:
- •Advanced 3D modeling (SolidWorks) for customer review and manuals
- •Direct CAM coding from solid models for tight tolerances
- •In-house engineering support for prototyping and optimization
- •3D printing, laser engraving, CAD/CAM services
- •Continuous investment in cutting-edge equipment
They'll work from scratch designs or existing data, and handle everything from one-off prototypes to production runs.
- •Call: 605.720.0002
- •Email: [email protected]
- •Online: Use the rifle configurator at macbros.com/custom-rifles to spec your build, or fill out a contact form.
Allan and Dale have hunted Cape Buffalo in Africa and understand what precision rifles need to do when the shot matters. That experience informs every rifle they build.