Springfield Saint 5.56mm Semi-Automatic AR-15 Rifle With M-LOK Rail

Overview

The Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-LOK rail is a purpose-built defensive carbine designed for shooters who demand reliability out of the box. Chambered in 5.56 NATO, this rifle combines Springfield Armory’s manufacturing precision with a direct-impingement gas system and a free-floating M-LOK handguard. Whether you are looking for a patrol rifle, a home defense platform, or a range-ready carbine, the Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-LOK rail delivers consistent performance without requiring aftermarket modifications. Each rifle is test-fired before shipment and includes a B5 Systems stock and grip for immediate use.

Features & Specs

The Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-LOK rail is built around a forged 7075 T6 aluminum upper and lower receiver with a Type III hard-coat anodized finish. The 16-inch chrome-moly vanadium barrel features a 1:8 twist rate and a Melonite finish for extended barrel life and corrosion resistance. The free-floating M-LOK handguard allows for direct accessory mounting without affecting point of impact, while the pinned low-profile gas block ensures consistent cycling. The rifle is equipped with a mil-spec trigger group, a carbine-length gas system, and a six-position collapsible stock.

• Caliber: 5.56mm NATO (compatible with .223 Remington)
• Barrel: 16-inch, chrome-moly vanadium, Melonite finish, 1:8 twist
• Handguard: Free-floating M-LOK rail, 15-inch length
• Stock: B5 Systems SOPMOD-style, six-position collapsible
• Overall length: 32.5 inches collapsed / 35.75 inches extended
• Weight: 6.5 pounds unloaded
• Capacity: Accepts all standard AR-15 magazines (one 30-round Magpul PMAG included)

Who It Is For

This rifle is designed for the civilian shooter who needs a battle-proven platform without the cost of custom assembly. The Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-LOK rail is ideal for law enforcement professionals seeking a reliable patrol carbine, as well as responsible gun owners looking for a durable home defense rifle. It also suits competitive shooters in tactical divisions who require a ready-to-run rifle with a free-floating handguard for accuracy. If you are a first-time AR-15 buyer, the Saint provides a no-compromise entry point with Springfield Armory’s warranty and customer support. The M-LOK system allows you to attach lights, grips, or bipods without needing to replace the handguard.

• Home defense and property protection
• Range training and marksmanship development
• Patrol and security applications
• Competition in 2-Gun or tactical matches

Shipping & FFL

All orders for the Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-LOK rail will ship to a Federal Firearms License (FFL) dealer of your choice. You must select a licensed FFL holder during checkout and provide their current license information. We do not ship to PO boxes or APO addresses for firearms. It is your responsibility to verify that your local laws allow the purchase and possession of this firearm. Once the rifle arrives at your chosen dealer, you will complete a standard ATF Form 4473 and pass a NICS background check before taking delivery. Shipping is limited to the United States.

• Shipment to licensed FFL dealer only
• Valid government-issued ID required for transfer
• Background check required per federal law
• Local and state laws must be followed by purchaser