Description
The Sport line has been Smith & Wesson's bread-and-butter AR for years, and the Sport III is the version a lot of us were waiting for. The biggest upgrades are right where you want them: a 15-inch free-floating M-LOK handguard replaces the old drop-in plastic, and a mid-length gas system smooths out the recoil impulse compared to the carbine-length setup on earlier Sport rifles. This particular package, model 14207, sweetens the deal by including a Crimson Trace CTS-106 red dot optic installed at the factory, so the rifle shows up ready for the range instead of ready for a shopping list.
What the M&P15 Sport III Brings to the Table
Under the handguard you get a 16-inch barrel with 5R rifling, a profile that maintains more consistent contact with the bullet for better accuracy potential. The muzzle is threaded, so swapping to a different muzzle device down the road is simple. Receivers are machined from 7075-T6 aluminum, the stock is a six-position collapsible unit, and a thumb safety rounds out the familiar AR control layout. At the mag well, a 30-round Magpul PMAG comes in the box, and the rifle runs any standard AR-15 pattern magazine you already own.
A Red Dot That's Ready When You Are
The included CTS-106 features a 4 MOA dot that's quick to pick up on close and mid-range targets, with user-adjustable windage and elevation and a riser for proper height on the flat-top Picatinny rail. Plan on confirming zero with your preferred ammo the first trip out, and after that it's load, aim, shoot. All that free M-LOK real estate up front leaves plenty of room for a light, sling mount, or hand stop whenever you're ready to build it out.
Why the Sport III Bundle Makes Sense
Plenty of entry-level ARs leave you buying an optic, a mag, and a better handguard before the first range day. This one covers all three out of the gate, which is why it's become a go-to pick for new AR owners and anyone wanting a capable 5.56 carbine without piecing one together part by part.
Key Specifications
- Manufacturer: Smith & Wesson
- Model: M&P15 Sport III
- MPN: 14207
- UPC: 022188898194
- Caliber: 5.56 NATO / .223 Rem
- Action: Semi-Automatic
- Barrel Length: 16" (threaded)
- Rifling: 5R
- Gas System: Mid-Length
- Handguard: 15" Free-Float M-LOK
- Optic: Crimson Trace CTS-106 Red Dot, 4 MOA (installed)
- Capacity: 30+1
- Stock: 6-Position Collapsible
- Receiver Material: 7075-T6 Aluminum
- Safety: Thumb Safety
- Finish: Black Anodized
What’s Included
- M&P15 Sport III rifle
- Crimson Trace CTS-106 red dot optic (factory installed, with riser mount)
- One 30-round Magpul PMAG
- Owner's manual
Frequently Asked Questions
Does the M&P15 Sport III come with the red dot already mounted?
Yes, the Crimson Trace CTS-106 comes installed from the factory on a riser that puts it at a usable height on the flat-top rail. You'll still want to zero it with your ammo of choice before counting on it, since every rifle and load combination shoots a little differently. After a quick zeroing session, it's good to go.
Can the Sport III shoot both .223 Remington and 5.56 NATO?
It can. The chamber is cut for 5.56 NATO, which safely handles both 5.56 and .223 Remington ammunition. That gives you flexibility to run cheaper .223 range ammo or full-pressure 5.56 loads without a second thought.
What's different about the Sport III compared to the Sport II?
The two biggest changes are the 15-inch free-floating M-LOK handguard and the switch to a mid-length gas system. The free-float handguard gives you way more mounting options and helps accuracy, while the mid-length gas system softens felt recoil for quicker follow-up shots. The Sport III also uses 5R rifling in the barrel, which is a nice touch at this level.
What magazines does the M&P15 Sport III accept?
It runs any standard AR-15 pattern magazine, including PMAGs, USGI aluminum mags, Lancers, and Hexmags in various capacities. One 30-round Magpul PMAG is included in the box, so you have a proven mag from day one.




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