I bought a Ruger AR-556 in late June, finally fired it yesterday. I was extremely pleased with the performance; flawless functioning (used two Magpul 30 round mags) and four types of commercial ammo (two Winchester, one PMC, and one Federal). The rifle shot both 55 grain (ball) and 62 grain (green tip) well, with the 62 grain slightly edging out the 55. The trigger was exactly what one would expect from a M16 type rifle - but I had no issue with it, will probably leave it as it is. Not a bad rifle for the $700.00 I paid (it wasn't on sale when I bought it).
