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 represents a precise balance of combat-proven reliability and modern modular design. Built on a forged 7075 T6 aluminum upper and lower receiver, this rifle delivers consistent performance across a wide range of shooting applications. The 5.56mm NATO chamber accepts both .223 Remington and 5.56mm ammunition, offering versatility for range training, home defense, and tactical use. Each Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-Lok rail is assembled in the United States and undergoes a multi-point inspection before leaving the factory.

Features & Specs

The Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-Lok rail incorporates several design upgrades that distinguish it from standard carbines. The 16-inch chrome-moly vanadium barrel features a 1:8 twist rate, stabilizing both lightweight varmint loads and heavier 77-grain match projectiles. The M-Lok free-float handguard provides continuous top rail space and allows direct accessory mounting at 3, 6, and 9 o clock positions without adding bulk.

• Caliber: 5.56mm NATO / .223 Remington with a 1:8 twist barrel and A2 flash hider
• Receiver set: Forged 7075 T6 aluminum with Type III hard coat anodized finish
• Trigger: Nickel-boron coated single-stage trigger with a 5.5 to 6.5 pound pull weight
• Stock: B5 Systems SOPMOD buttstock with six-position carbine buffer tube
• Gas system: Mid-length direct impingement with a low-profile gas block
• M-Lok handguard: 15-inch free-float design with heat shield and full-length Picatinny top rail

The bolt carrier group is shot-peened and MPI-tested, with a Carpenter 158 steel bolt and a chrome-lined carrier interior for enhanced reliability under sustained fire. The charging handle is the standard GI-spec design with a larger latch for gloved use. The rifle ships with one 30-round Magpul PMAG magazine.

Who It Is For

The Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-Lok rail is engineered for the serious shooter who requires a duty-grade rifle without unnecessary weight or proprietary parts. It serves the civilian law enforcement officer seeking a patrol carbine, the competitive three-gun competitor needing a flat-shooting platform, and the responsible homeowner who wants a reliable semi-automatic rifle for defensive purposes. The mid-length gas system and M-Lok handguard reduce felt recoil and improve heat dissipation during extended strings of fire. This rifle also functions well for recreational target shooters who value accuracy and parts commonality across the AR-15 platform. Because it accepts standard AR-15 magazines, triggers, stocks, and grips, the Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-Lok rail allows the owner to customize components as their needs evolve.

Shipping & FFL

This 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. After placing your order, you will receive a confirmation email requesting your selected FFLs contact information. Your chosen dealer must have a valid FFL on file with us before the rifle ships. We do not ship to PO boxes, and all shipments require an adult signature at delivery. It is your responsibility to verify that this rifle is legal to purchase and possess in your state, county, and municipality. Some jurisdictions impose restrictions on magazine capacity, barrel length, or overall configuration. Please confirm compliance with all local laws before ordering. We do not ship to California, Connecticut, Hawaii, Illinois, Massachusetts, New Jersey, New York, or Washington D.C. without prior verification of compliant configuration. All sales are final once the firearm is transferred to your dealer.