Smith & Wesson has returned to the large format AR pistol market with two new entries for 2021, a rimfire M&P-15-22, and as well as a 5.56 model. 

The Massachusetts-based company used to market the M&P15-22P, a 6-inch .22LR with a quad rail handguard and rear sling attachment that was put to pasture in 2011 after a short run. The replacement M&P15-22 is updated with an M-LOK handguard, SB Tactical SBA3 arm brace, and a full-length Pic top rail over a 7-inch barrel. 

Specs on the new S&W M&P15-22 have the .22LR pistol with an overall length of 25.4-inches and a weight of 53.6-ounces. (All Photos: S&W) 
The M&P15-22 ships with a 25-round magazine and will have an MSRP of $504.

M&P15 Pistol

As with its baby brother, the M&P15 pistol uses a free-float handguard with M-LOK slots, a full-length top Picatinny rail, and an adjustable arm brace. Chambered in 5.56 NATO, it has a chromed firing pin, interchangeable palmswell grip inserts, a forward assist (no M&P15 Sporter, here), and a threaded barrel. 

The 4140-steel barrel runs 7.5-inches with a 1:7 twist while weight, unloaded is 5.5-pounds. Note the blast diverter, which is a nice thing on such a shorty barrel. 
The M&P15 Pistol in 5.56 ships with a 30-round PMAG and has an MSRP of $896.
revolver barrel loading graphic