Description
The Windham Weaponry AR-15 M4 SRC 5.56mm/223, 16″ Barrel, Optic Ready, 30rd is a no-frills, ready-to-run carbine built to mil-spec standards. It’s a direct-impingement rifle with a 16-inch chrome-lined barrel, a flat-top upper receiver for optics, and comes with a 30-round magazine. Priced at $648.59, it’s a value-focused entry into the proven AR-15 platform that ships to Missouri and compliant US states.
Key Features
- Mil-Spec Foundation: Built to widely accepted military specifications for reliability and broad parts compatibility.
- Optic-Ready Flat Top: The forged A3 upper receiver has a Picatinny rail for mounting red dots, scopes, or backup iron sights without a front sight block in the way.
- Chrome-Lined Barrel: The 16-inch, 1:9 twist barrel features a chrome-lined bore and chamber for enhanced durability and easier cleaning.
- Complete Package: Comes with a 30-round PMAG, a standard A2 pistol grip, and a 6-position collapsible stock—ready to configure and shoot.
- Proven Direct Impingement: Utilizes the classic, simple AR-15 gas system known for its reliability and lightweight operation.
Specifications & Details
| Caliber | 5.56x45mm NATO / .223 Remington |
| Barrel Length | 16 inches |
| Barrel Twist | 1:9 inches |
| Overall Length | 32.25 – 35.5 inches (stock collapsed/extended) |
| Weight (unloaded) | Approx. 6.5 lbs |
| Magazine Capacity | 30 Rounds (PMAG included) |
The rifle’s forged 7075-T6 aluminum receivers provide a solid backbone, while the phosphate-coated steel components offer corrosion resistance. The 1:9 barrel twist rate is a versatile middle-ground, stabilizing a wide range of common .223 and lighter 5.56mm bullet weights effectively. With an overall weight hovering around six and a half pounds, it’s a handy, maneuverable carbine right out of the box. The six-position stock gives you plenty of adjustment for body armor or different shooting positions, a practical touch often missing on budget rifles.
Who This Rifle Is For
This Windham Weaponry M4 SRC is for the shooter who wants a dependable, no-nonsense AR-15 without paying for a fancy rollmark or unnecessary upgrades. It’s ideal for a first-time AR buyer, a Missouri hunter needing a versatile varmint or predator rifle, or as a dependable “truck gun” or home defense tool. It’s also a perfect candidate for a build project where you plan to swap parts over time—the solid mil-spec base accepts a universe of aftermarket triggers, handguards, and stocks. Look, if you need a workhorse, not a show pony, this is squarely in your lane.
Pros & Cons: The Practical Tradeoffs
Pros: The price point is the headline—it’s tough to find a rifle from a reputable manufacturer with these features under $650. The optic-ready flat top is a huge value-add, saving you $100+ versus a model with a fixed carry handle. Windham Weaponry’s heritage from the original Bushmaster plant means proven manufacturing know-how. Finally, mil-spec compatibility means upgrades are drop-in ready; parts from brands like Magpul, BCM, or Geissele will fit without gunsmithing.
Cons: To hit this price, some features are basic. The handguard is a standard round, two-piece plastic M4 style that can get hot. The trigger is a standard mil-spec single-stage, which is functional but not refined. The 1:9 twist, while versatile, may not optimally stabilize the heaviest 77-grain match bullets some precision shooters prefer. That said, these are all easy and affordable upgrades down the road.
Frequently Asked Questions
Q: Is this rifle ready to shoot as soon as I get it?
A: Yes, it comes with a magazine and is fully assembled. You will need to add an optic or iron sights, as the flat-top upper has no sights installed. An FFL transfer is required for firearm purchases before you can take possession.
Q: Can I use .223 Remington and 5.56mm ammunition interchangeably?
A: Yes. The chamber is rated for 5.56x45mm NATO, which means it can safely fire both 5.56mm and .223 Remington rounds. This is a key spec that adds to the rifle’s versatility and ammo availability.
Q: How does this compare to other budget AR-15s?
A: The main differentiator is provenance. Windham Weaponry is run by the original team from the Bushmaster facility in Maine, offering a level of institutional experience that newer budget brands may lack. You’re paying for proven reliability over flashy marketing. At $648.59, it competes directly with entry-level models from PSA and Ruger, often beating them on features like the chrome-lined barrel.
For a straightforward, reliable AR-15 that gets the fundamentals right without blowing your budget, the Windham Weaponry M4 SRC represents solid value. It’s a tool built for use, not just for show. Available at firearms-missouri.com for Missouri residents and nationwide.
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