TweetI had a cheap delton and built one out of PSA parts. Then I bought a CMMG complete upper and stripped lower. Timney trigger and such in the lower. Shoots better than my buddies high end ARs all day long! And CMMG has maybe the best finish of all ARs at least what I have seen. I did have a headspace issue. I sent the rifle to CMMG and they fixed it at no charge even though it was not a complete rifle when I bought it.