Link to DFW :
http://www.dfwarms.com/germanww2.htm
Their web site indicates addresses in both Arlington and Grand Prairie...you might call to find out their retail store location.
Another shop to try...I have dropped into this shop in Garland, TX a couple of times when I travel...they are located between Dallas and Plano...
http://groups.msn.com/BSGunsTexasBESTGunStore