Faxon Sentry-X FX5216X | .223/5.56 | 16″ Barrel

The Faxon Sentry-X FX5216X is an AR-style semi-automatic rifle built for reliable range performance and practical training. It features an enhanced forged X-Tra Lite receiver set with a tensioning screw, an ambidextrous charging handle and safety selector, and a Faxon barrel finished in black nitride. The rifle is fitted with upgraded furniture including a B5 Bravo stock and B5 Type 23 grip.

For optics, consider pairing this rifle with a Vortex Strike Eagle 1-6×24, which balances fast target acquisition and mid-range precision for most AR applications.

Common uses: range training and general target/practical shooting.

Product Specifications

• The caliber is .223 Rem/5.56 NATO.
• The barrel measures 16 inches and has a black nitride finish.
• The handguard length is 15 inches with M-LOK compatibility.
• The rifle uses a semi-auto action.
• The magazine capacity is 30 rounds as provided in product data.
• The overall length is 34 inches.
• The unloaded weight is approximately 5.63 lbs.
• The rate of twist is listed as 1:8.
• The bolt carrier group is a nitride M16 BCG with superfinish.
• The muzzle device is a Faxon MUZZLOK.
• The stock is a B5 Bravo in black synthetic material.
• The rifle includes an ambidextrous safety lever.
• Sights are listed as none (optic-ready configuration).
• The finish style is blued/black.
• The UPC is 816341027961.

The Sentry-X presents a practical, well-equipped AR platform with forged lightweight receivers and upgraded control elements for shooters who want dependable performance on the range. Its 16″ nitride barrel and M-LOK handguard make it adaptable for optics and accessories, while the ambidextrous controls and modern furniture provide ergonomic handling for a wide range of users.