Stag AR-15 3-Gun Rifle 18″ SS Barrel | Firearms-Missouri

$116,033.00

A competition-ready Stag AR-15 built for 3-Gun, featuring an 18″ fluted stainless barrel and M-LOK handguard for a balance of accuracy and speed, all at a practical price point.

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Description

You’re looking at a dedicated competition rifle, but you don’t want to spend custom-gun money. You need something reliable, fast-handling, and accurate enough to hit those 300-yard plates, all without breaking the bank. The solution? A factory-built platform designed for the sport from the ground up. That’s the value proposition of the Stag AR-15 3-Gun Rifle 5.56/223 18″ SS Fluted Barrel 16.5″ M-lok Rail ACS Stock 30rd Mag.

What is the Stag AR-15 3-Gun Rifle? It’s a purpose-built competition AR-15 featuring an 18-inch stainless steel fluted barrel for a balance of velocity and maneuverability, paired with a lightweight 16.5-inch M-LOK handguard. It comes ready to run with a Magpul ACS stock and a 30-round magazine, offering a complete, competition-ready package for under $1200. This rifle is drop-in ready and ships to Missouri and compliant US states.

Let’s talk about the barrel—it’s the heart of any precision rifle. The 18-inch length is the 3-Gun sweet spot. It gives you better muzzle velocity and a smoother gas impulse than a 16-inch carbine, which helps with longer shots and recoil management, but it avoids the front-heavy sluggishness of a 20-inch rifle. The stainless steel construction promises better consistency and accuracy over time compared to standard chrome-moly barrels. The fluting isn’t just for looks; it shaves off meaningful weight and increases surface area for cooling during those frantic, high-round-count stages. You’re getting a premium barrel feature without the full custom price tag.

The platform is built on a standard mil-spec lower receiver, which is a huge benefit for the budget-conscious shooter. This means a vast universe of aftermarket triggers, grips, and controls are compatible. Want to upgrade to a Geissele or LaRue trigger later? It’s a simple swap. The included Magpul ACS stock is a solid starting point, offering a solid cheek weld and a storage compartment for tools or batteries. The 16.5-inch M-LOK handguard gives you ample real estate for your support hand and for mounting a bipod, handstop, or flashlight without adding the bulk and weight of a quad rail. The total package weight comes in around 7.5 lbs unloaded, a practical weight for moving and shooting.

Stag 3-Gun Rifle Specifications
Specification Detail
Caliber 5.56 NATO / .223 Remington
Barrel 18″ Stainless Steel, Fluted
Handguard 15″ M-LOK
Stock Magpul ACS
Magazine 30-round PMAG (included)
Overall Length Approx. 35-38″ (stock adjusted)

Pros & Cons
The upside is clear: you get a specialized competition configuration for the price of many basic off-the-shelf AR-15s. The fluted stainless barrel and M-LOK rail are notable upgrades. It’s a complete package—just add optic, ammo, and go. The cons? At $1160.33, it’s above entry-level AR pricing, so you’re paying for the 3-Gun-specific features. It’s also not the absolute lightest option, as some dedicated race guns use more exotic materials. That said, for the money, the performance-to-cost ratio is hard to beat.

So who is this rifle for? It’s ideal for the shooter who is serious about getting into 3-Gun or multi-gun competitions but needs to watch their budget. It’s also a great fit for the recreational shooter who wants a more accurate, longer-range capable AR than a standard 16-inch carbine, without the hassle of building one part-by-part. If you want a rifle that’s competitive out of the box but leaves room for you to upgrade components as your skills progress, this Stag model hits that mark.

Frequently Asked Questions

Q: Is this a complete rifle, or is it a kit or upper?

A: This is a complete, functional rifle. It includes the lower receiver, upper receiver, barrel, handguard, stock, and one 30-round magazine. It is transferred through an FFL as a complete firearm.

Q: Can I use my existing AR-15 magazines with this rifle?

A: Absolutely. It is compatible with all standard AR-15 pattern magazines, including Magpul PMAGs and USGI aluminum mags. The included magazine is a 30-round PMAG.

Q: What kind of accuracy can I expect from the 18-inch stainless barrel?

A: With quality 5.56 or .223 ammunition, you can reasonably expect 1-2 MOA accuracy, which is more than sufficient for the target sizes and distances encountered in typical 3-Gun matches. Barrel fluting has a minimal effect on precision when done correctly.

Ready to see if this balanced 3-Gun contender is the right fit for your needs and budget? Explore the full details and availability at firearms-missouri.com for Missouri residents and nationwide.

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