Thanks!! It has ran without a hitch! I shoot rifles differently then handguns, I will run a gun for an entire year without touching any others and then rotate! I got it around Jan and so far it has about 5600 through it. Ive been instructing rifle classes like crazy lately so it gets lots of time to play! The nicest thing about teaching is getting to demo and burn ammo! It is the lightest 16" gun i have ever owned at 6 lbs!!! It is 7.2 right now with everything on it and shoots flatter than all of my other m4's and the one with the pec is about 12 lbs!^ nice rifle.