Smith & Wesson M&P 15-22 .22 LR First-Generation Polymer Quad-Rail Semi-Auto Rifle – 16.5" Barrel, 25+1, Discontinued Variant
The first-generation Smith & Wesson M&P 15-22 pairs reliable rimfire performance with true AR-15 ergonomics, making it a favored trainer and plinker. This discontinued polymer quad-rail model is lightweight yet reinforced with steel in critical areas, offering easy accessory mounting and dependable blowback operation. With its collapsible stock, 16.5-inch carbon-steel barrel, and proprietary 25-round magazines, it delivers an authentic feel in a dedicated .22 LR platform.
Condition
Overall Condition: Excellent – Showing only faint signs of prior use or handling.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Rifling Condition: Excellent – Sharp lands and grooves.
Specific Condition Notes: There are minimal handling marks on the polymer receivers and stock. The bore remains bright and clean.
What’s Included
- Smith & Wesson M&P 15-22 first-generation rifle
- (2) 25-round Smith & Wesson polymer magazines
This rifle uses a simple blowback action designed specifically for rimfire pressure, eliminating the need for a conversion kit and enhancing reliability with .22 LR ammunition.
The lightweight polymer upper and lower receivers keep overall weight down while steel reinforcements in high-stress areas maintain durability. Controls mirror standard AR-15 layout, so muscle memory transfers directly to centerfire platforms.
A true polymer quad rail handguard provides four Picatinny rails for lights, optics, or vertical grips, and the upper receiver includes an integral rail for mounting optics without additional hardware.
The six-position collapsible stock and A2-style pistol grip deliver familiar handling, while the recessed magazine release and two-position safety lever match typical AR-15 operation.
Now discontinued, this first-generation quad-rail variant has become harder to find, adding collector appeal alongside practical training value.