Description
The Smith Wesson MP15 Sport III is the version of the Sport line that finally gave people what they kept buying aftermarket: a long free-float M-LOK handguard and a forward assist and dust cover, on a rifle that still costs what an entry-level AR should. For most buyers this is the sensible first AR-15.
What the Smith Wesson MP15 Sport III Added Over Earlier Sports
Earlier Sport rifles shipped with a short plastic handguard and skipped the forward assist and dust cover to hit a price. Almost every buyer replaced the handguard immediately, which meant the savings were not real. The Smith Wesson MP15 Sport III ships with a 15-inch free-float M-LOK handguard and both of those receiver features included.
A free-float handguard also means nothing you hang on the rifle touches the barrel, which is worth real accuracy at distance.
Why This Is a Sensible First AR
A 16-inch 5.56 carbine is the most supported firearm configuration in America. Magazines, optics, slings, parts and instruction are all abundant and cheap, and the Smith Wesson MP15 Sport III uses standard AR-15 components throughout rather than anything proprietary.
It shoots soft, it is light enough to carry, and it will do everything a general-purpose rifle needs to do: home defense, training classes, recreational shooting, and hunting where 5.56 is legal.
Nothing on the Smith Wesson MP15 Sport III is proprietary, which is the most underrated feature an entry-level AR can have.
Handguard, Rails and Setting Up the Smith Wesson MP15 Sport III
M-LOK slots run the length of the handguard for lights, sling mounts and a bipod. A full-length top rail carries a red dot or an LPVO. Most people set the Smith Wesson MP15 Sport III up with a dot and a light and stop there, which is a genuinely complete rifle.
A 30-round magazine ships with it. Check your state rules before buying spares.
Smith Wesson MP15 Sport III Specifications
| Manufacturer | Smith & Wesson |
|---|---|
| Model | M&P15 Sport III |
| Manufacturer Part Number | 13807 |
| UPC | 022188894110 |
| Caliber | 5.56 NATO / 223 Remington |
| Capacity | 30+1 |
| Barrel Length | 16 in |
| Handguard | 15 in Free-Float M-LOK |
| Stock | Six-Position Adjustable |
| Receiver Features | Forward Assist, Dust Cover |
| Optics Mounting | Full-Length Picatinny Rail |
| Action | Semi-Automatic, Direct Impingement |
| Condition | New in Box |
| NFA Item | No |
Who the Smith Wesson MP15 Sport III Is For
First-time AR buyers who want something they will not immediately want to replace, and anyone who needs a dependable general-purpose rifle without spending like an enthusiast. It is also a common choice as a truck or ranch rifle and as a training-class gun.
If you want a premium barrel and trigger from the factory, there are rifles that cost twice as much and deliver that. The Smith Wesson MP15 Sport III is the value answer, and it is an honest one.
Instructors regularly see the Smith Wesson MP15 Sport III in classes, and it holds up to a full day of round count without complaint.
What You Might Upgrade Later
Two things, if anything. The trigger is a standard mil-spec unit — serviceable, not crisp — and a drop-in replacement is an inexpensive improvement you can do yourself. And a better optic will do more for your shooting than any part of the rifle itself.
Everything else on the Smith Wesson MP15 Sport III is fine as delivered, which was not true of earlier Sport models.
Do not feel obliged to change anything immediately — shoot the Smith Wesson MP15 Sport III as it comes and let the rifle tell you what it needs.
Ammunition and Practice
Standard 55 grain 5.56 or .223 covers practice cheaply. Heavier 62 to 77 grain loads shoot better at distance if your barrel twist suits them. Confirm zero with whatever you intend to keep in it.
The Smith Wesson MP15 Sport III takes any standard AR-15 magazine, so Magpul PMAGs and aluminium GI magazines both work.
We can include extra magazines with the Smith Wesson MP15 Sport III in the same shipment.
Ordering and FFL Transfer
We ship to your local FFL after we receive a copy of their license. If you have a preferred dealer, tell us at checkout and we will coordinate directly with them. Pennsylvania buyers can complete the transfer with us in Collegeville.
Browse more rifles in stock at MAG5 Firearms, or see the manufacturer page for the Smith & Wesson line.
Every firearm we ship leaves our Collegeville, Pennsylvania shop through a licensed FFL dealer and must be transferred to you by an FFL in your state. Questions about optics, ammunition or accessories? Call or email us before you order.
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