I have a month-old S&W M&P 15-22. She has only had a little over 200 rounds fired through her, and all of them were clean-burning (for a rimfire, of course) CCI Velocitors - it has also been cleaned numerous times. I am in the military, so I clean my rifle to perfection! I could also include about about 300 rounds of CCI Velocitors in a trade. So far I've got over $1200 invested in the rifle.
She's got a Barska 3-9x42mm dual-illuminated scope (that's darn accurate at 100 yards!), a TruGlo TruBrite dual-illuminated 4-reticle dot sight mounted at a 45-degree angle, a vertical foregrip, Magpul "AFG2" Angled Fore-Grip, 4-position adjustable bipod, and 6-position adjustable stock (the one in picture is not included - it will come with original "Tapco" stock). Currently has some cheap rail covers on it, you can have those too! I find it makes it a bit easier and more comfortable to grip with the AFG. It's the version with the non-threaded weighted barrel, but I've had it quoted for $60 if you wanted to get it threaded. Could also sell for less if you didn't want all of the accessories - hit me up and let me know what you don't want, and we can talk price.