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 direct evolution of the fighting carbine platform, engineered for reliability under sustained use. Built to Springfield Armory’s exacting mil-spec standards, this rifle delivers consistent accuracy and operational durability without unnecessary weight or bulk. The free-float M-LOK handguard provides a stable mounting interface for accessories while reducing overall mass, and the pinned low-profile gas block ensures unobstructed sight lines. For shooters who demand a duty-ready rifle straight from the box, the Springfield Saint 5.56mm Semi-Automatic AR-15 Rifle with M-LOK Rail is a proven choice for defensive, competitive, and training applications.

Features & Specs

Every component on this rifle is selected for function and longevity. The 16-inch chrome-moly vanadium barrel with a 1:8 twist rate stabilizes a wide range of 5.56mm and .223 Remington loads, while the Melonite finish resists corrosion and extends barrel life. The bolt carrier group is shot-peened, high-pressure tested, and magnetic particle inspected for consistent cycling. The M-LOK free-float handguard allows direct attachment of lights, grips, and lasers without adding bulk, and the B5 Systems grip and stock provide positive control in all shooting positions.

• Caliber: 5.56mm NATO (.223 Remington compatible); 16-inch barrel with 1:8 twist; Melonite-treated bore and chamber
• Upper and lower receivers forged from 7075 T6 aluminum; Type III hardcoat anodized finish
• Free-float M-LOK handguard with full-length Picatinny top rail; low-profile gas block
• B5 Systems Type 23 pistol grip and B5 Systems SOPMOD stock; carbine-length gas system
• Weight: 6.5 pounds unloaded; overall length: 33.5 inches (collapsed) to 36.75 inches (extended)

Who It’s For

This rifle is designed for the serious shooter who needs a dependable tool for home defense, patrol, or range training. The Springfield Saint 5.56mm Semi-Automatic AR-15 Rifle with M-LOK Rail fits the experienced operator who values a lightweight, balanced platform with proven ergonomics. It also serves well for the competitive shooter entering three-gun or tactical rifle matches, where reliability and quick target transitions matter. If you require a mid-tier AR-15 that performs above its price point and accepts standard AR-15 components for upgrades or maintenance, this rifle meets that standard without unnecessary complexity.

• Home defense and property protection: reliable cycling with defensive ammunition
• Patrol and security professionals: mil-spec construction with familiar manual of arms
• Range training and skill development: accurate enough for precision work, durable enough for high-round-count sessions

Shipping & FFL

The Springfield Saint 5.56mm Semi-Automatic AR-15 Rifle with M-LOK Rail ships securely in the manufacturer box with one 30-round Magpul PMAG and a cable lock. All firearm sales require shipment to a Federal Firearms License (FFL) dealer in your state. After placing your order, provide your chosen FFL dealer’s contact information. We verify the license prior to shipment. You are responsible for confirming that this rifle is legal to possess in your jurisdiction, including compliance with local magazine capacity restrictions. Please allow 3-7 business days for processing and shipping. Standard shipping rates apply, and signature may be required upon delivery.

• Shipment to your chosen FFL dealer only; no direct-to-consumer shipping
• You must verify FFL dealer accepts transfers; we cannot ship to unlicensed addresses
• All federal, state, and local laws apply; buyer assumes responsibility for compliance