good luck model one sales is approx. 2monthes behind last time i called and got them to answer over a month ago, they dont do lowers. just upper kits which i heard last week at the gun show if you order online will be 3-4 monthes out everyone is that way.
My friend and I have been afew and ive got 2 stag lowers and used a model one light weight car kit. No probs works flawless.
Best bet gunshow.
6.87 @100.08MPH in the 1/8
Getting quicker everytime.