Pin & Weld and Finishing on AR-15

[Daedalus]

I just picked up a Colt LE-6920 (http://www.colt.com/ColtLawEnforceme...ntCarbine.aspx) and now need to get it AWB compliant per our wonderful NJ firearms laws. That means a new stock, replace the flash hider and delete the bayonet lug. The stock is easy so I did that. The rest of the changes are why I am here.

The flash hider is an evil gun prohibited item, as is a threaded barrel unless the hider is permanently replaced with a compensator or muzzle brake. I like the linear compensator from Kies and have just ordered this in burnished stainless steel: (http://www.joeboboutfitters.com/Prod...-Blst%20Mstr22). The original flash hider should unscrew and this will screw on in its place.

The compensator needs to be pinned and welded - not something I can do with my two left thumbs. Also, the bayonet lug needs to be ground or milled off.

Here's the rub..... assuming I can get someone to pin & weld the compensator and get rid of the bayo lug... how do I get the finish of the new bits to match the barrel? Spray paint, Cerakote, bluing??? I really don't want to refinish the whole upper assembly if I can avoid it.

Are there any Cotepians or others that are in the biz that can do this? Any recommended shops?

Meanwhile, I am an evil terrorist because I have a flash hider