S&W .22 is a good gun..., BUT !!
this is the real thing, no plastic.., wellll maybe the handguards, but other than that it is just like your AR-15 .223/5.56mm upper, shoots great and rarely ever misfires or jams.
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it is a TacSol upper, the barrel is steel the receiver is Aluminum go here for more info..., thank you all !
http://www.tacticalsol.com/tshome/ar22-22lr-conversion
MSRP $625.., seems a bit high but you are paying for QUALITY !!
i got mine at a gun show special introductory offer for $425.00 and two Black Dog mags.., Ceiner mags also work but a bit "iffy" for reliability.