Where to buy a Scar??need help.

I was looking everywhere to find store who stock the Scar-L-STD And need to have the dealer install a Bullet Button. I was hopping someone knows a good place. So far I see LAN World but the seem to have a mile long list.

LAN world is who I usually refer people to for CA work.

I dont know anyone else that really does a ton of CA compliant guns