The Smith & Wesson M&P15-22 Sport is a semi-automatic .22 LR rifle with a 16.5-inch barrel, 33.8-inch overall length, and 5.2 lb weight. This configuration includes a 25-round magazine, a red dot sight, and a six-position adjustable stock. The polymer receiver and M-Lok handguard with Magpul M-Lok slots are standard. A2 flash hider is included. Matte black finish throughout. 
 

Key Specifications 

• Model: M&P15-22 SPORT 
• Caliber: .22 LR 
• Action: Semi-Automatic 
• Capacity: 25 Rounds (plus 1 in chamber) 
• Barrel Length: 16.5 inches 
• Overall Length: 33.8 inches (extended) 
• Weight: 5.2 lbs. 
• Safety Features: Two Position Safety 
• Finish: Matte Black 
   

Features 

 
The 25-round magazine is a notable upgrade from the standard 10-round version, extending range sessions without frequent reloads. The included red dot sight provides fast target acquisition and is ready to use out of the box. The M-Lok handguard accepts accessories like lights or vertical grips at any of the available slots. 
 
The six-position adjustable stock fits a range of body sizes and shooting positions. The A2 flash hider helps with muzzle control during rapid fire. At 5.2 lbs the rifle handles easily. The .22 LR chambering keeps recoil minimal and ammunition costs low, which makes it well suited for volume practice or teaching new shooters.

Users of the M&P15-22 Sport with red dot sight generally rate it highly. The 25-round capacity combined with the included optic are seen as strong value adds compared to stripped-down versions. Most owners report the rifle cycles reliably with quality .22 LR ammunition.

The AR-style ergonomics, adjustable stock, and M-Lok handguard draw consistent praise from shooters who use it as a training platform. The red dot sight is considered adequate for the intended use though some owners upgrade to a better optic.

Ammo sensitivity to cheap bulk rounds comes up in some reviews, consistent with semi-auto .22 LR platforms generally. A small number of owners note concerns about long-term durability of specific components under heavy use. Overall the rifle is well regarded for recreational shooting and training.