This might be old news, and I'm aware of kits that will give you a side changing handle, but does anyone have any experience or feedback regarding the brand LAR Manufacturing? This is what I'm talking about: http://www.largrizzly.com/web/guest/ops-4-uppers
They claim to have tight tolerances and allow for "match grade accuracy" but I'd really like to know if anyone can validate that claim. Flame me if you want, but the charging handle is my least favorite part of the AR platform and this looks like a decent alternative.
Comments, feedback, past experiences, please share!