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 delivers a no-compromise platform built for shooters who demand reliability from the first round to the last. Manufactured by Springfield Armory, this rifle combines a free-float M-Lok handguard with a mil-spec bolt carrier group and a 16-inch chrome-moly vanadium barrel. Chambered in 5.56 NATO, it accepts standard AR-15 magazines and provides consistent accuracy at intermediate ranges. Every component is assembled in the United States and tested for function before leaving the factory.

Features & Specs

The Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-Lok rail is engineered for duty-grade performance. The M-Lok rail system allows direct attachment of lights, grips, or lasers without adding unnecessary weight. Key specifications include:

• Barrel: 16-inch chrome-moly vanadium steel, 1:8 twist, Melonite finish, M4 feed ramps
• Handguard: 15-inch free-float M-Lok aluminum rail with continuous top Picatinny
• Gas System: Mid-length direct impingement with pinned low-profile gas block
• Bolt Carrier Group: Mil-spec 8620 steel carrier, shot-peened bolt, chrome-lined bore
• Stock: BCM Gunfighter six-position adjustable stock with QD sling mount
• Trigger: Single-stage mil-spec trigger, 6-7 lb pull weight
• Muzzle Device: Springfield Armory A2-style flash hider
• Weight: 6.75 pounds unloaded
• Overall Length: 32.5 to 35.5 inches adjustable

This rifle includes one 30-round Magpul PMAG magazine. The receiver is forged 7075-T6 aluminum with Type III hardcoat anodizing.

Who It’s For

The Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-Lok rail suits three primary user groups. First, the home defense shooter who needs a carbine that works every time with factory ammunition. Second, the range enthusiast who wants a factory-built rifle ready for iron-sight or optic use without immediate upgrades. Third, the new AR-15 buyer looking for a mid-tier rifle from a established American manufacturer with a proven warranty. The mid-length gas system reduces felt recoil and improves reliability compared to carbine-length gas systems on similar rifles. If you plan to add accessories, the free-float M-Lok rail preserves accuracy potential by eliminating barrel contact from hand pressure.

• No gunsmith required for basic accessory installation
• Accepts all standard AR-15 magazines and aftermarket parts
• Ready for optics, irons, or co-witnessed red dot sights

Shipping & FFL

This rifle ships to a Federal Firearms License (FFL) dealer in your area. After placing your order, we will contact you to confirm your chosen FFL dealer’s current license information. The dealer must accept shipments from out-of-state retailers. You are responsible for verifying that your local laws permit ownership of this firearm. We do not ship to P.O. boxes or APO addresses for firearms. Once the rifle arrives at your FFL dealer, you will complete the ATF Form 4473 and any applicable state background check before taking possession. Shipping is free within the contiguous United States. International shipping is not available. All sales are final once the firearm ships to your FFL dealer.

• Must ship to a licensed FFL dealer
• Dealer must provide a signed copy of their FFL license
• Background check required at transfer per federal and state law