The Smith & Wesson M&P10 is a semi-automatic rifle chambered in .308 WIN / 7.62mm NATO. It has an 18-inch barrel, weighs 8.1 lbs, and holds 10+1 rounds. The receiver is flat-top, optics-ready, with no iron sights included. 
 

Key Specifications 

• Caliber: .308 WIN / 7.62MM NATO 
• Action: Semi-Automatic 
• Capacity: 10+1 rounds 
• Barrel Length: 18 inches 
• Weight: 8.1 lbs 
• Overall Length: 36.9 inches (extends to 40.9 inches) 
• Safety Type: Manual (Ambidextrous) 
• Sights: None; Optics Ready 
   

Detailed Features 

 
The flat-top receiver accepts standard scope rings and rail-mounted accessories without modification. The 6-position telescoping stock adjusts length of pull to fit different body sizes or shooting positions and can accommodate a plate carrier setup. A muzzle flash suppressor reduces the visible signature in low light. 
 
At 8.1 lbs before optics and accessories, the M&P10 is mid-weight for a .308 semi-auto. The ambidextrous manual safety is a practical feature often missing on lower-priced platforms. The 18-inch barrel is a compromise between the shorter 16-inch carbine configuration and the 20-inch rifle-length -- it preserves most of the .308's velocity while keeping overall length manageable.

The M&P10 gets solid marks for build quality and accuracy at its price point. Buyers who've used it for deer hunting and range work consistently report tight groups and reliable cycling. The ergonomics, particularly the adjustable stock and ambidextrous controls, get specific praise.

Critical feedback covers a few recurring points. At 8.1 lbs, it's not a lightweight hunting rifle, and that becomes relevant on longer carries. The factory trigger is described by several owners as heavier than they prefer for precision work, and upgrading it is a common first modification. Aftermarket support for the M&P10 platform is narrower than for AR-10 pattern rifles from other manufacturers, limiting drop-in part options. Some buyers also note the price feels high relative to competing .308 semi-autos with similar features.