Offers information about the P7 series of semiauto pistols made by Heckler and Koch with an HK-4 annex.

Features this North American subsidiary which also distributes Fabarms.

Offers information on Heckler and Koch firearms, a message board, and gun rights data.

Features this unofficial resource for the serious student of Heckler and Koch. Provides a forum and also sells HKPro gear.

Presents a library of information on everything for owners and enthusiasts of the Mark23 or Mk23mod0 SOCOM.