Don't think that weapons from the U.S. of A. aren't going to get their own category page, no sir!
“The Desert Eagle is a weapon featured throughout the Thing-Thing series. The Desert Eagle is a...Desert Eagle
“The Bren 10 is a weapon featured in Thing-Thing 4. The Bren 10 is a semi-auto pistol chambered...Bren 10
“The XM8 is a weapon featured only in Thing-Thing 4. The XM8, developed by Heckler& Koch USA (the...XM8
“By far throughout the Thing-Thing series, there were only two AutoMag weapons featured. The...AutoMag series