Springfield Saint 5.56 NATO AR-15 Rifle With B5 Furniture
When you pick up the Springfield Saint 5.56 NATO AR-15 rifle with B5 Furniture for the first time, you notice it immediately: this rifle feels balanced, solid, and ready to work. Springfield Armory built this platform for shooters who want a reliable, no-fuss carbine that performs right out of the box. Chambered in 5.56 NATO, it handles everything from range training to home defense without skipping a beat. The B5 Systems furniture gives it a modern, ergonomic feel that fits naturally in your hands, and the mil-spec components mean parts and upgrades are easy to find. Whether you are a first-time AR buyer or a seasoned shooter adding to your collection, this rifle delivers consistent performance at a price point that makes sense.
Overview
The Springfield Saint 5.56 NATO AR-15 rifle with B5 furniture is a direct-impingement carbine built around a 16-inch chrome-moly vanadium barrel with a 1:8 twist rate. That twist stabilizes a wide range of bullet weights, from 55-grain plinking rounds to 77-grain match loads. The bolt carrier group is shot-peened and MPI-tested for durability, and the M16-style bolt carrier adds extra mass for reliable cycling. Springfield included a two-stage match trigger that breaks cleanly at about 4.5 to 5 pounds, giving you a crisp pull without the creep you often find in budget rifles. The carbine-length gas system runs smoothly, and the pinned low-profile gas block keeps the handguard clean for accessory mounting.
Features & Specs
This Springfield Saint 5.56 NATO AR-15 rifle with B5 furniture comes loaded with practical features that make it stand out in its class. The B5 Systems furniture includes a Sopmod stock, a Type 23 pistol grip, and a carbine-length handguard with M-Lok slots. The handguard is free-float, which improves accuracy by removing pressure on the barrel. The muzzle device is a standard A2-style flash hider, but the barrel is threaded 1/2×28, so suppressors or compensators are a direct swap. Below are the key specs you need to know:
- Caliber: 5.56 NATO (also accepts .223 Remington)
- Barrel length: 16 inches, chrome-moly vanadium with melonite finish
- Twist rate: 1:8, ideal for 55-77 grain ammunition
- Overall length: 32.5 to 35.75 inches with collapsible stock
- Weight: 6 pounds 12 ounces (unloaded)
- Upper receiver: Forged 7075 T6 aluminum with M4 feed ramps
- Trigger: Two-stage match, approximately 4.5-5 lb pull
- Handguard: B5 Systems free-float M-Lok, 12.5 inches
- Stock: B5 Systems Sopmod, six-position collapsible
- Pistol grip: B5 Systems Type 23, rubber overmolded
- Gas system: Carbine length, low-profile pinned block
- Bolt carrier group: M16-style, shot-peened, MPI tested
- Muzzle device: A2 flash hider, 1/2×28 threads
- Sights: None included, flat-top Picatinny rail for optics
- Finish: Hard-coat anodized black
- Magazine: One 30-round Magpul PMAG
The B5 furniture is one of the biggest selling points on this Springfield Saint 5.56 NATO AR-15 rifle with B5 furniture. The Sopmod stock has a positive cheek weld and a rubber buttpad that stays put on your shoulder. The Type 23 grip has a palm swell that fills your hand naturally, and the M-Lok handguard stays cool even after extended strings of fire.
Who It’s For
This rifle fits a broad range of shooters. If you are a new AR owner, the Springfield Saint 5.56 NATO AR-15 rifle with B5 furniture gives you a complete, ready-to-run platform without needing to swap parts. The two-stage trigger and free-float handguard are upgrades many shooters make later, but here they come standard. For experienced shooters, this is a solid backup rifle, a training carbine, or a base for customization. The M-Lok handguard accepts all standard accessories, the barrel is accurate enough for three-gun or precision practice, and the 5.56 NATO chamber lets you shoot affordable .223 ammo. If you need a reliable rifle for home defense, this carbine is compact enough to maneuver in tight spaces but long enough to reach out to 300 yards with ease.
We also see law enforcement and security professionals using this rifle for patrol or duty use. The B5 furniture is proven in tactical environments, and the mil-spec construction means parts and magazines are everywhere. Just keep in mind that this is a semi-automatic firearm, so local laws apply.
Shipping & FFL
This Springfield Saint 5.56 NATO AR-15 rifle with B5 furniture ships to your chosen Federal Firearms License (FFL) dealer. We do not ship directly to residential addresses. After you place your order, we will need a signed copy of your FFL dealer’s license or a confirmation from their shop. You can enter your preferred FFL during checkout, or contact us afterward if you need to update it. Once the rifle arrives at your dealer, you will complete a standard ATF Form 4473 and pass a background check before taking possession. Shipping is free to the lower 48 states, and we typically process orders within one to two business days. If you have any questions about FFL requirements, give us a call or check our FFL FAQ page before ordering.
FFL Transfer & Firearms Laws for Springfield Saint 5.56 NATO AR-15 Rifle with B5 Furniture
All firearms, including the Springfield Saint 5.56 NATO AR-15 Rifle with B5 Furniture, must be shipped to a licensed Federal Firearms License (FFL) dealer. You will be required to complete a background check and any necessary paperwork before taking possession.
How It Works
- Place your order online.
- Provide your preferred FFL dealer information.
- We ship the firearm directly to your FFL.
- You complete the background check and pickup at the FFL.
Legal Compliance
We comply with all federal and state firearm laws. It is your responsibility to ensure the Springfield Saint 5.56 NATO AR-15 Rifle with B5 Furniture is legal in your state. Some states may have restrictions on certain firearm models or features.
Helpful Resources
Need assistance? Contact our Miami store for help with FFL transfers and firearm compliance.
Frequently Asked Questions About This Product
Why buy Springfield Saint 5.56 NATO AR-15 Rifle with B5 Furniture from Miami Shooters Supply?
We’re a trusted firearms dealer offering fast shipping, competitive pricing, and 100% compliance with U.S. federal firearm laws. All orders ship from our licensed facility with full tracking and expert customer service.
Where can I buy Springfield Saint 5.56 NATO AR-15 Rifle with B5 Furniture?
You can purchase this item directly on our website and have it shipped to your local FFL dealer. You can also visit us in-store in Miami, Florida.
Is Springfield Saint 5.56 NATO AR-15 Rifle with B5 Furniture available now?
Availability is shown live on this page. If the “Add to Cart” button is visible, this item is currently in stock and ready to ship.
What category does this product belong to?
This product is listed under: RIFLES, Springfield Armory.
What tags or features does this product have?
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Is this product legal in my state?
It is your responsibility to ensure this item is legal in your state or locality. We ship only to valid FFL dealers in compliance with U.S. laws. Always check your local regulations.

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