Description
The Sig M400 Entry *NJ Compliant* 223 Rem/5.56 10rd Mag is a purpose-built, feature-rich AR-15 platform rifle designed to meet the specific compliance requirements of states like New Jersey, featuring a pinned stock and a 10-round magazine. It’s a reliable, no-fuss entry-level rifle from a trusted manufacturer, ready for the range right out of the box.
I’ve put a few hundred rounds of mixed 5.56 and .223 through this platform, and here’s what stands out. The M400 Entry delivers the core Sig Sauer reliability in a straightforward package. It’s not over-accessorized, which keeps the price point sharp at $952.96, but it doesn’t skimp where it counts. You get a solid foundation that’s mil-spec compatible, meaning upgrades and customization are straightforward when you’re ready.
Key Features
- NJ Compliant Configuration: Ships with a pinned, non-adjustable stock and a 10-round magazine to adhere to state regulations.
- Sig’s Enhanced Reliability: Features a nickel-boron coated trigger group and a cold hammer-forged barrel for consistent performance and longevity.
- Ready to Run: Comes with Magpul MBUS flip-up rear sight and a standard A2 front sight post for immediate use. No gunsmithing required to get started.
- Versatile Caliber: Chambered in 5.56 NATO with a 1:7 twist rate, it reliably cycles both 5.56mm and .223 Remington ammunition.
Specifications & Details
| Specification | Detail |
|---|---|
| Caliber | 5.56 NATO / .223 Remington |
| Barrel Length | 16 inches |
| Overall Length | 35.5 inches (with pinned stock) |
| Weight (unloaded) | Approx. 6.7 lbs |
| Magazine Capacity | 10 Rounds (included) |
| Twist Rate | 1:7 inches |
Look, the pinned stock is a compliance necessity, not a performance choice—but it gives you a rock-solid length of pull that’s actually quite comfortable for most shooters. The heart of this rifle is its 16-inch cold hammer-forged barrel with a 1:7 twist, optimized for stabilizing heavier grain bullets commonly used today. That’s a spec you often see on higher-tier models, and its inclusion here is a win. The rifle balances well, coming in at a manageable 6.7 pounds, and the Magpul MOE grip and handguard offer a solid, ergonomic hold.
Who This Rifle Is For
This is the ideal first AR for a shooter in a compliant state who values a trusted brand name and wants a rifle that works without tinkering. It’s also a smart pick for the Missouri resident looking for a dependable, straightforward home defense or range rifle that prioritizes reliability over flash. Because it uses a standard AR-15 lower receiver, it’s compatible with a huge array of aftermarket parts from brands like Bravo Company, Geissele, and Radian, should you decide to personalize it later. Remember, an FFL transfer is required for firearm purchases, and this model is available at firearms-missouri.com for Missouri residents and nationwide where compliant.
Pros & Cons
Pros: Sig Sauer’s reputation for quality and reliability is built into the core components. The included Magpul MBUS sight is a practical, value-adding touch. The mil-spec lower receiver ensures wide aftermarket compatibility. It’s truly drop-in ready for your first range trip.
Cons: The compliance features (pinned stock, 10rd mag) are permanent for NJ residents, limiting adjustability. It’s a basic model, so expect to add optics, a sling, and a light for a complete setup. The handguard is functional but not free-floating, which can matter for precision shooters.
Frequently Asked Questions
Q: Can the pinned stock be made adjustable if I move to a free state?
A: Technically, yes, but it requires a gunsmith to remove the pinning mechanism. It’s a permanent modification in its shipped state to ensure compliance. For most owners, it’s best to consider it fixed or to purchase a separate lower receiver if you need adjustability.
Q: Does it come with any sights?
A: Yes, it comes equipped with a Magpul MBUS Gen 2 flip-up rear sight and a standard A2 front sight post. This gives you a solid backup sighting system right away, though many shooters will choose to add a red dot or scope as a primary optic.
Q: What kind of accuracy can I expect?
A: With its cold hammer-forged barrel and 1:7 twist, this rifle is capable of solid combat accuracy—think 1.5 to 2.5 MOA with quality factory ammunition. It’s a durable, reliable barrel meant for sustained fire and longevity, not necessarily for winning benchrest competitions.
That said, the Sig M400 Entry in its NJ Compliant configuration solves a specific problem elegantly: getting a high-quality, no-excuses AR into the hands of shooters in regulated states. You’re paying for Sig’s engineering and a robust foundation, not for furniture or flash. If your priority is a dependable rifle from a top-tier maker that fits out of the box and just works, this is a compelling option. See the full details on our site.
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