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

Overview

If you have been shopping for a dependable, mid-tier AR-15 that does not break the bank, the Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-Lok rail deserves a hard look. Springfield Armory built this rifle to bridge the gap between entry-level plinkers and high-end custom builds. From the moment you shoulder it, you notice the balance: the 16-inch chrome-moly barrel keeps the weight forward without feeling nose-heavy, and the M-Lok free-float handguard gives you plenty of real estate for lights, grips, or bipods. This is a rifle that runs right out of the box, and after a few hundred rounds downrange, you will understand why so many shooters trust it for home defense, range days, and even three-gun matches.

Features & Specs

The Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-Lok rail comes loaded with practical upgrades that actually matter when you are behind the trigger. Springfield did not just slap a rail on a basic carbine; they redesigned the gas system, trigger, and furniture to deliver a reliable, accurate platform. Check out the key specs below:

• Caliber: 5.56mm NATO (also accepts .223 Remington)
• Barrel: 16-inch chrome-moly steel with 1:8 twist, Melonite finish, and a low-profile gas block
• Handguard: 15-inch M-Lok free-float rail with a full-length top Picatinny rail
• Trigger: Nickel-boron coated single-stage trigger (crisp 5-6 lb pull)
• Stock & Grip: B5 Systems Sopmod stock and grip with rubber overmolding
• Muzzle Device: Springfield Armory branded compensator for reduced muzzle rise
• Weight: 6 pounds 13 ounces (unloaded)
• Overall Length: 32.5-35.75 inches (collapsible stock)

• BCG: Carpenter 158 steel bolt carrier group with shot-peened bolt
• Gas System: Mid-length direct impingement for softer recoil impulse
• Charging Handle: Standard GI-style with a large latch
• Receiver: Forged 7075 T6 aluminum with Type III hard coat anodizing
• Magazine: Ships with one 30-round Magpul PMAG
• Safety: Ambidextrous safety selector

Who It Is For

This Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-Lok rail is built for the shooter who wants a ready-to-run rifle without spending a month swapping parts. It is an excellent choice for a first-time AR owner who wants something better than a budget brand but does not need a custom-gunsmith build. Experienced shooters will appreciate the upgraded trigger and M-Lok rail, which save you the cost of aftermarket upgrades. It works well for home defense where reliability matters most, and the mid-length gas system makes it pleasant to shoot all day at the range. If you compete in practical shooting matches or run carbine classes, the Saint holds its own against rifles costing hundreds more.

Shipping & FFL

Because the Springfield Saint 5.56mm semi-automatic AR-15 rifle with M-Lok rail is a modern sporting rifle classified as a firearm under federal law, we can only ship it to a licensed Federal Firearms License (FFL) holder. After you place your order, we will contact you to confirm your chosen FFL dealer’s information. Please verify with your local FFL that they accept shipments from online retailers before ordering. We ship within 1-3 business days via a carrier that requires an adult signature at delivery. All federal, state, and local laws apply, and it is your responsibility to ensure this rifle is legal in your jurisdiction. No returns or cancellations once the rifle has shipped to your FFL.