Originally Posted by Gunboy
what are the good brands for lowers and lower parts kits?
Honestly, I can't tell much difference between a bushmaster, noveske, spikes, or the CMMG lowers I have. Any forged lower will work fine, as you'll pay more for billet and it just looks "cooler" in my opinion. A friend is going the budget route and picked up a CMMG from buds for less than $100, which I now have and am doing the build for him.
As for LPK, theres spikes, DPMS, etc..., but it really depends. I like to use my own grips and load geissele triggers in all mine. I go for the DPMS small parts kit from brownells. Its a LPK without a FCG, the only throw away is the grip.
Just get a plain 'ol spring and carbine buffer if youre going adjustable stock route. Choose a mil spec tube as mil spec stocks seem more plentiful.
If you are building the upper and need a BCG. (And I suggest you build the upper, because YOU WILL END UP CHANGING SOMETHING LATER). Most will tell you to go BCM, which are really good. I prefer to spend the extra $100 or so for the Spikes NiB coated by fail zero.
Troy has a great selection of handguards for a decent price, and Rainier arms is a decent site for selecting items for the build. I like Rainier and Brownells. Model 1 Sales for low cost builds.
If you run into problems, feel free to ask, as I am sure there's a ton of advice for you on the boards. As for me, I think I've had the opportunity to screw up and fix just about everything on an AR.