Mossberg Patriot Carbine .300 Win Mag 20″ Threaded
Pros & cons
What works
- Factory-threaded barrel saves $200+ aftermarket machining
- LBA trigger adjusts from 2.5 to 5 pounds pull weight
- 7.3 lb weight is 1.2 lb lighter than Ruger American Go Wild
- Accepts AICS pattern magazines for reliability upgrades
Trade-offs
- Synthetic stock lacks bedding blocks—limits precision beyond 400 yards
- 20" barrel loses ~100 fps versus 24" .300 Win Mag barrels
- No iron sights included—requires $150+ optic investment
- Magazine release requires 8 lb pressure—difficult with gloves
Video review
Expert review
Specs at a glance
About this product
What is the Mossberg Patriot Carbine .300 Win Mag 20″ Threaded? It's a suppressor-ready bolt-action hunting rifle chambered in .300 Winchester Magnum with a 20-inch medium bull barrel and factory-installed 5/8"-24 threading. Built on Mossberg's Patriot action with a fixed synthetic stock and drilled/tapped receiver, this carbine delivers .300 Win Mag performance in a compact 42.5-inch overall package designed for maneuverability in dense timber or ground blinds.
What is the Mossberg Patriot Carbine .300 Win Mag used for?
This rifle is built for hunting medium to large game at intermediate ranges where .308 Winchester lacks energy. The .300 Win Mag cartridge delivers 3,620 ft-lbs muzzle energy with 180gr factory loads, making it effective for elk, moose, or bear within 400 yards. The 20-inch barrel sacrifices approximately 75-100 fps velocity compared to 24-inch barrels but gains significant handling advantages in tight spaces.
How does the Mossberg Patriot Carbine compare to the Stevens 334 .308 Win?
The Patriot Carbine outperforms the Stevens 334 in .308 Win in terminal energy but demands more shooter discipline. While the Stevens 334 delivers 2,650 ft-lbs with 150gr ammunition, the Patriot Carbine generates 3,620 ft-lbs with 180gr loads—37% more energy at the muzzle. However, the Stevens 334 costs $120 less and produces 28% less recoil, making it better for new hunters or volume shooters.
What does it weigh and what are the dimensions?
This carbine weighs 7.3 pounds unloaded and measures 42.5 inches overall with its 20-inch barrel. The synthetic stock contributes to the weight savings compared to walnut alternatives, while the medium bull barrel profile maintains rigidity without adding excessive front-end weight. The 13.5-inch length of pull accommodates most adult shooters wearing winter clothing.
Who is this NOT for?
This rifle is not for recoil-sensitive shooters or those hunting in states requiring non-threaded barrels. The .300 Win Mag generates approximately 28 ft-lbs of free recoil energy—42% more than a .308 Winchester—which becomes punishing during extended range sessions. Additionally, states like New York prohibit threaded barrels on hunting rifles without specific permits.
What's in the box?
You receive the rifle with one 4-round detachable box magazine, factory-installed Picatinny rail, and owner's manual. Unlike some competitors, Mossberg includes the rail pre-installed with proper torque specs—saving you $35-50 versus aftermarket bases. The magazine release requires deliberate pressure to prevent accidental drops, a design choice I appreciate for hunting safety.
Is the Mossberg Patriot Carbine worth it at $421.99?
At $422, this rifle delivers exceptional value for hunters needing .300 Win Mag performance in a compact platform. The threaded barrel alone would cost $200+ to add aftermarket, and the LBA adjustable trigger outperforms most factory triggers in this price range. Compared to custom builds starting at $1,200+, this factory-ready package eliminates gunsmithing costs and NFA paperwork delays for suppressor users.
Key attributes
| upc | 015813282345 |
| manufacturer | Mossberg |
| manufacturer part number | 28234 |
| action | Bolt Action |
| atf type | SPORTING RIFLE |
| barrel length | 20" |
| caliber/gauge | .300 Winchester Magnum |
| capacity | 3 |
| color | Black |
| model | Patriot |
| number of magazines | 1 3 rd. |
| product type | Rifle |
| shipping weight | 9.3 |
| sights | No |
| youth rifle | Yes |
Frequently asked questions
- Is it compatible with SilencerCo Omega 300 suppressors?
- Yes, the 5/8"-24 threading matches SilencerCo's direct-thread mount system. You'll need their Bravo pattern mount (part #AC244) for proper alignment. Expect 1.5-2 dB reduction compared to direct thread mounting due to the mount's interface design.
- Does it fit in a Pelican 1750 rifle case?
- Yes, with 4 inches of clearance lengthwise. The 42.5-inch overall length fits diagonally in the Pelican 1750's 56.5-inch interior. You'll need to remove the bolt for optimal security during transport—a 30-second operation with the bolt release lever.
- How long does shipping take to Montana?
- FFL shipments to Montana take 3-5 business days via FedEx Priority Overnight. We use insulated packaging that maintains internal temperature between -20°F and 120°F during transit to prevent stock warping or metal condensation.
- Can I return it if the threading is damaged?
- Yes within 30 days if threading damage occurred during manufacturing. We verify crown and thread integrity with PTG gauges before shipment. Field damage from improper suppressor mounting requires gunsmith evaluation—typically $85-120 for re-threading services.