Overall Length : 37.4 inches
Barrel Length: 18.1 Weight (empty): 7.2 lbs Cyclic ROF: 650-800 rpm Capacity: 20 or 30rd detachable box magazine Muzzle Velocity: 3215 fps This rifle bears MANY external similarities with the early BERETTA AR-70 rifle. Actually, this was probably the model taken by BERETTA for main "imitation". Available in both .7'62x51mm-NATO and 5'56x45mm-NATO. The SIG SG540 dispensed with the complex roller lock action, and instead used the simpler, yet robust rotating bolt action made famous by the AK series of rifles. However, the gas system was improved by adding an adjustable gas regulator. Other production shortcuts, such as stampings and casting were employed to further reduce the cost of the rifle. The SG540 could be equipped to fire either in full auto mode, or three shot burst. However, converting between the two required switching out certain fire control components. The SG540 also featured a folding bipod, H&K style drum rear sight, and the ability to use a wide variety of accessories such as telescopic sights and bayonets. The SG540 was a moderate success. It was manufactured under license by the French company Manurhin for the French army. In addition, SG540s have been shipped to 17 other armies throughout the world.
Photo and Information from: PIERANGELO TENDAS