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There is a lot to be said for an AR-15 that just runs. The Faxon Sport 16" 5.56 NATO rifle skips the gimmicks and puts the money where it counts, starting with a barrel made in-house by a company that built its reputation on barrels. Faxon Firearms is a family-owned outfit in Greater Cincinnati, Ohio, and every one of these rifles is machined and assembled under the same process controls they use for their aerospace and defense work. That pedigree shows up in the details, not the marketing.
The heart of this rifle is a 16 inch Duty Series SOCOM-profile barrel with a 1:8 twist, which stabilizes everything from 55 grain plinking ammo up to 77 grain match loads. The SOCOM contour carries enough mass to soak up heat during long range sessions without turning the gun into a boat anchor. Pair that with the mid-length gas system and you get a noticeably softer recoil impulse and less wear on parts compared to carbine-length setups. The 1/2×28 threaded muzzle leaves the door open for a brake, flash hider, or suppressor down the road, and the mid-length gas makes it a friendly suppressor host to begin with.
The free-float M-LOK handguard and full-length top Picatinny rail give you plenty of real estate for a red dot or LPVO, lights, and a sling without any adapters. The M4-style stock and mil-spec selector keep controls familiar, and since the rifle is built on standard AR-15 architecture, upgrading the trigger or furniture later is a screwdriver-and-punch afternoon, not a project. It feeds from standard AR magazines with a 30+1 capacity and comes backed by Faxon's limited lifetime warranty.
For a first AR, a training rifle, or a home-defense gun you can trust without babying it, the Sport 16 checks the boxes that matter and leaves the rest up to you.
Yes. The barrel is chambered in 5.56 NATO, which safely handles both 5.56 NATO and .223 Remington. The 1:8 twist rate also stabilizes a wide spread of bullet weights, so you can run cheap 55 grain range ammo or heavier 69 to 77 grain loads without issue.
It is a solid starting point. The 1/2×28 muzzle threads accept most 5.56 suppressor mounts, and the mid-length gas system manages backpressure better than a carbine-length setup. If you plan to run suppressed regularly, adding an adjustable gas block or tuning your buffer and spring will dial it in for your specific can and ammo.
It is machined and assembled in-house by Faxon Firearms in Greater Cincinnati, Ohio. Faxon is a family-owned American manufacturer with machining roots going back to 1978 in aerospace and defense work, and they build their own barrels rather than sourcing them out.
On a 16 inch barrel, a mid-length gas system runs at lower pressure than a carbine-length setup, which means a softer recoil impulse, smoother cycling, and less wear on the bolt carrier group over time. It is widely considered the ideal pairing for this barrel length, especially for high-volume range days and training.
| UPC | 810209950217 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | FXSPT55616SA13 |
| Barrel Length | 16" |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Capacity | 30 + 1 |
| Safety | Mil-Spec Selector |
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