Both these rifles had selective fire capability and weighed under 5 kg (12 lbs.)

Designed by inventor James Paris Lee, the rifle weighed 8.3 pounds (3.7 kg) and was about 48 in (122 cm) long.

The rifle weighed approximately 9 to 10 lbs (depending on the pattern) without the bayonet attached.

The rifle weighs 30 pounds (without a magazine or ammunition) and has a muzzle brake to help tame the recoil.

The rifle was 1.44m long and weighed 4 kg.

The rifle is chambered in 7.62x51mm and weighs in at 7 lbs (3.18 kg).

The rifle weighs 2.5 pounds light enough for convenient backpacking.

The sniper's rifle weighed thirty pounds and the ammunition for it was not exactly light.

The rifle weighs 2.5 pounds so this is even light enough to take along backpacking.

Other requirements were that the rifle weigh less than 18 pounds loaded, have Picatinny rails, and have an easily-changeable barrel.