Springfield Saint 5.56mm Semi-Automatic AR-15 Rifle with M-LOK Rail
Overview
When you pick up the Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-LOK rail, the first thing you notice is the balance. This is not a budget build that rattles or feels top-heavy. Springfield Armory designed this rifle as a ready-to-run platform for shooters who want a dependable, accurate carbine straight out of the box. The 5.56mm chambering gives you the versatility to run both .223 Remington and 5.56 NATO ammunition without a hitch. Whether you are setting up for home defense, hitting the range for a weekend class, or just keeping a reliable rifle in the safe, the Saint delivers consistent performance. The M-LOK free-float handguard keeps weight down and lets you attach accessories exactly where you need them. This is a rifle that does not need upgrades to be effective, though it certainly welcomes them if you want to make it your own.
Features & Specs
The Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-LOK rail comes packed with features that matter. Springfield Armory builds these rifles with a Melonite-treated barrel and bolt carrier group for extended service life and easier cleaning. The mid-length gas system smooths out the recoil impulse compared to carbine-length systems, keeping you on target faster. Here is what you will find on this model:
- M-LOK free-float handguard constructed from aluminum with a full-length top Picatinny rail for optics, lights, or lasers
- Adjustable rear sight and a fixed front sight post, both with protective ears, providing a solid backup iron sight system
- Six-position collapsible stock with a Hogue rubber grip for a secure, comfortable hold in any shooting position
You also get a forged 7075 T6 aluminum upper and lower receiver, a nickel boron coated trigger group for a crisp break, and a 1:8 twist rate barrel that stabilizes both lighter varmint bullets and heavier match projectiles. The overall length adjusts from 32.5 inches to 35.5 inches depending on stock position, and the unloaded weight sits right around 6.5 pounds. This is a lightweight, maneuverable rifle that still feels solid when you shoulder it.
Who It Is For
The Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-LOK rail suits a wide range of shooters. If you are new to the AR platform, this rifle gives you a reliable foundation without the headache of piecing together a build from spare parts. Experienced shooters will appreciate the quality control and the fact that it runs right out of the box with minimal break-in. Law enforcement officers and security professionals often choose the Saint for patrol or duty use because of its proven durability. Hunters in states that allow semi-automatic rifles for varmint or predator control will find the 5.56mm chambering and M-LOK rail ideal for mounting a light or bipod. And if you simply want a well-made American rifle for recreational shooting or defensive purposes, this one earns its place in the rack.
- First-time AR buyers who want a turnkey rifle without aftermarket guesswork
- Experienced shooters looking for a reliable backup or training carbine
- Hunters and sportsmen who need a lightweight, accurate platform for .223/5.56
Shipping & FFL
We ship the Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-LOK rail to your chosen Federal Firearms License (FFL) dealer. After you place your order, we will need a signed copy of your FFL dealer’s license on file before we can process shipment. Please contact your local FFL before ordering to confirm they accept transfers and understand their fees. We do not ship to residential addresses, P.O. boxes, or international locations. All NFA rules and state and local laws apply; it is your responsibility to ensure compliance with regulations in your jurisdiction. Once the rifle arrives at your dealer, you will complete the standard ATF Form 4473 and any required background check before taking possession. If you have questions about the transfer process, our customer service team can guide you through the steps. We are here to help you get this rifle into your hands safely and legally.
- Shipment only to active FFL dealers with a signed license on file
- No residential or PO box deliveries permitted
- Buyer must comply with all federal, state, and local firearms laws





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