I am a total gun fanatic, and these are my favorites....

The Heckler & Koch PSG-1:
Caliber: .308
Magazine Capacity: 5 to 20 rounds
Barrel Length: 25.6 inches
Rifling: Polygonal
Twist: 12 inches RH
Overall Length: 47.5 inches
Weight: 17.8 pounds
Finish: Matte black; phosphate
Stock: Matte black, fixed; high-impact plastic
Sights: Hensolt 6x42 telescopic
Trigger Pull: 3.2 pounds

The Heckler & Koch MP5:
Caliber: 9mm x 19
Weight: 6.47 pounds
Barrel Length: 8.85 inches
Overall Length: 21.00/27.25 inches

The Heckler & Koch G3:
Caliber: 7.62 mm
Weight: 9.70 pounds
Barrel Length: 17.71 inches
Overall Length: 40.38 inches

The Heckler & Koch G3K:
Caliber: 7.62 mm
Weight: 9.70 pounds
Barrel Length: 12.40 inches
Overall Length: 28.00/35.25 inches

Click here to see more about HK handguns
Click here for the official Heckler & Koch site