Ok looking for a new upper in 9mm to use with my M&P lower. Mostly just want something to use as a plinker due to cheaper ammo and lower noise. Anybody have any suggestions? Also can anyone suggest any sites that sell AR parts at good prices... love Midway USA but I live in Kansas City MO and hate paying shipping and sales tax.

Sounds like your goal would be better achieved with a 22 upper. 22lr is far, far cheaper than 9mm.

You can buy conversion kits to put in your current upper, or buy a whole new upper. There are advantages and disadvantages to each, some google searching and research will be beneficial before your purchase.

Thanks for the response but I don't want a .22lr. I have a conversion kit, a 15-22 and 17 other .22lr's. I think i am good on the 22 front.

Olympic Arms makes some fine pistol caliber uppers for AR15.
http://http://olyarms.net/index.php?page=shop.product_details&flypage=flypage.pbv.v8.tpl&product_id=100&category_id=76&option=com_virtuemart&Itemid=5
Cheaper than dirt sells many brands of parts out of Texas.
Cheaper Than Dirt - America's Ultimate Shooting Sports Discounter

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