The Bushmaster M4 Patrolman is a semi-automatic rifle chambered in 5.56x45mm NATO with a 16-inch barrel, mil-spec trigger, and 6-position collapsible stock. At 6.70 lbs it's a standard-weight carbine. The 1:9 twist rate handles typical 55-grain and 62-grain loads well. 
 

Key Specifications 

• Model: M4 Patrolman 
• Caliber: 5.56x45mm NATO 
• Action: Semi-Auto 
• Barrel Length: 16 inches 
• Capacity: 10+1 rounds 
• Trigger: Mil-Spec 
• Overall Length: 32.50" - 36" 
• Weight: 6.70 lbs 
• Stock: 6-Position Collapsible 
• Sights: A2 Front & Carry Handle Rear 
• Receiver Material: 7075-T6 Aluminum 
• Twist Rate: 1:9" 
   

Detailed Features 

The A2 front sight and carry handle rear sight give you functional iron sights out of the box. The carry handle is removable if you want to run a flat-top optic setup, though check the specific configuration before assuming. 
 
The 6-position collapsible stock adjusts length of pull to fit different shooters or accommodate body armor. The A2 flash hider reduces visible muzzle signature during firing. 
 
The 7075-T6 aluminum upper and lower receivers are the same alloy used across most quality AR builds. 
 

Usage 

A standard 16-inch carbine configuration in 5.56. Covers home defense, range work, and varmint hunting. The mil-spec trigger functions reliably; shooters wanting a precision trigger will look at aftermarket options, which are plentiful for the AR platform.

Reliability gets mentioned positively most often -- the Patrolman runs consistently during extended sessions and holds its accuracy well enough for practical use at typical engagement distances.

The AR platform's modularity is a draw for buyers who plan to customize over time. The iron sights work, which matters for people who don't want to immediately add an optic.

Quality control is the recurring criticism. Some owners report misfeeds or component fit issues out of the box, which is frustrating at any price point. Bushmaster's customer service gets mixed marks -- some buyers report smooth warranty resolution, others describe delays. The 10-round magazine capacity (on this configuration) is also noted as a limitation compared to standard 30-round AR magazines. Comparisons to Colt and S&W M&P Sport variants come up frequently, with some buyers arguing those offer better fit and finish at similar prices. Worth comparing before buying.