I have. I haven't really been able to beat this price. Thought I would ask around here for a little more advice.
Last AR I put together cost $517.00. It was a really nice rifle. CMMG Lower, DPMS lower parts kit with some trigger and spring work, Used A2 stock and tube, with a HBAR 1:9 twist Colt post ban A3 upper.
I loved the gun. Shot awesome. Just had issues with bullets in the upper range. Decided to sell it outright, and go with a new setup. Which led me to White Oak for the Service Upper, and really leaning towards the RRA A2 lower with 2 stage trigger for shooting High Power.
I like the fact that the upper will have a 3/8 with quarter minute clicks. Rear sights will be pinned, and the front is adjustable for windage also. Should be a great rifle. Something about a simple service rifle that gets me going. Drop it, use it as a boat paddle, hammer, dig a hole with it, and it will still shoot true. Try that with your varmint rifle. Don't think it will make it.
I also don't like a bunch of mess hanging off my rifle. Give me a 20" barrel and an A2 stock. It is all subject to opinion. I am just jacked about getting this rifle. I know it will shoot the 69 and 77 SMKs great. I bet it shoots the 68 and 75 HPBT and/or 75 A-Max single loaded really well also.
You can bet that I will be taking some coyote with this using the A2 sights as well. Well just had to talk about it. Getting ready for the purchase.