The Faxon Firearms Sentry is an AR-15 semi-automatic rifle chambered in 223 Rem/5.56 NATO with a 16-inch black nitride barrel. It has a 15-inch M-Lok handguard, a B5 Bravo stock, and a Type 23 pistol grip. The receiver is finished in black. 
 

Key Specifications 

• Brand: Faxon Firearms 
• Model: Sentry 
• Caliber: 223 Rem/5.56 NATO 
• Action: Semi Auto 
• Barrel Length: 16 inches 
• Color/Finish: Black Nitride 
   

Detailed Features 

• AR-15 platform with 16-inch black nitride barrel 
• 15-inch M-Lok handguard for accessory mounting 
• B5 Bravo stock 
• Type 23 pistol grip 
• Black nitride finish throughout

Owners of the Faxon Sentry tend to praise the quality of the black nitride barrel, noting it holds up well under extended range use without special cleaning attention. The M-Lok handguard draws consistent approval for its slim profile and the flexibility it offers when attaching lights or other accessories.

The B5 Bravo stock gets mixed reviews. Some shooters find it a solid, no-flex choice for a rifle in this category; others prefer an adjustable option with more length-of-pull positions. The Type 23 grip is functional but polarizing, as those with smaller hands sometimes find the angle less comfortable than aftermarket alternatives.

Value perception is generally positive given the nitride treatment and component selection. A common note is that the Sentry ships ready to run without needing immediate upgrades, though trigger feel is the one area where owners most often look first when personalizing the build.