I took the sku # from lipseys and then searched the S&W performance center site. No such animal as far as i can tell. Also, the 15-22 standard is advertised as having a match barrel. " M&P15-22
The M&P15 rifle line has expanded to now include the new M&P15-22. Chambered in .22LR, the M&P15-22 rifle is built with high strength polymer upper and lower receivers. This creates a reduced weight rifle that retains the looks and operating features of the standard M&P rifle.

1. 6 Position Collapsible Stock
2. Functioning Charging Handle
3. Adjustable Rear and Front Sights
4. Two-Position Receiver Mounted Safety Selector
5. Cartridge Case Deflector
6. Bolt Catch
7. Recessed Magazine Release Button
8. High Strength Polymer Magazine
9. Light Weight, High Strength Polymer Quad Rail Handguard
10. Match Grade Precision Barrel" This info is from S&W's site.

I just bought the MOE 15-22 for a lot less than almost $800 and it is sweet.
I think that it's just a typo in the ad perhaps.
Let me know if I'm shooting flyers here.
Hobie