The Smith & Wesson M&P10 Sport is a semi-automatic rifle chambered in .308 WIN / 7.62mm NATO, with a 16-inch barrel, 20-round capacity, and black finish. It weighs 8 lbs. 
 

Key Specifications 

• Caliber: .308 WIN / 7.62MM NATO 
• Capacity: 20 rounds 
• Barrel Length: 16 inches 
• Weight: 8 lbs. 
• Finish: Black 
• Action Type: Semi-Automatic 
   

Detailed Features 

The barrel is 4140 steel with Armornite finish for corrosion resistance. The 5R rifling with a 1:10" twist rate improves accuracy and reduces fouling. The firing pin is chromed. Controls -- safety selector, magazine release, and bolt release -- are ambidextrous. The gas block has a Picatinny rail. The stock is a 6-position telescopic design. 
 

Usage 

At 8 lbs with a 16-inch barrel, the M&P10 Sport is a mid-weight .308 carbine. The ambidextrous controls are a practical feature for left-handed shooters or those who switch hands. The 5R rifling performs well with match ammunition. The Picatinny gas block rail allows mounting a front sight or other accessories without an additional handguard.

The M&P10 Sport gets generally positive feedback for reliability. Owners report smooth cycling with a range of .308 factory loads, and the ambidextrous controls are specifically praised by left-handed shooters as a rare feature at this price point.

The 5R rifled barrel draws favorable comments from precision shooters; accuracy at 100-200 yards is reported as consistently good. The Armornite finish holds up well to outdoor use in wet conditions.

Weight at 8 lbs is the most-mentioned drawback -- it's heavier than competing .308 carbines like the SFAR, and some owners upgrade the stock or handguard to reduce weight. Price relative to other .308 platforms comes up in comparisons, with most buyers feeling it's reasonable for the specs. Stock sights are minimal, so most owners add an optic early.