If you poke around the website, they have (added cost) options of pinning stocks in place (any position you want), grinding bayo lugs, and pin/weld their muzzle brake.
The stock and bayo lug are like $10 each, the muzzle brake is $85.
Check us out at Remsport we have complete uppers and lowers for sale or we can build you one. You can stop in and pick out your parts from our large inventory and then you can even watch while your upper or lower or both are being built.
Call us we are in MA.
Thanks
John
413 579 1994