Mongo's Machine Gun Pages

*Mongo's Machine Gun Pages*	Stoner 63A LMG
*Mongo's Machine Gun Pages*
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	The Stoner 63A LMG is one of seven possible configurations built from the same receiver and parts sub assemblies. The basic receiver used for the rifle is inverted in the LMG. The inversion of the receiver places the ejection port on the left side of the weapon (all MG configurations eject brass left). The trigger group is mounted on the other side of the receiver from the rifle. The inversion of the receiver also places the gas system below the barrel, which is ideal for a belt fed weapon. The LMG has itself has many different sub configurations. The LMG was initial designed with the belt feed from the left side. The LMG with the left side feed experienced occasional failures due to empty cases ejecting from the weapon and bouncing back into the ejection port. These failures were dubbed "spin back failures". In an effort to correct the problem, a right side feed was developed.

	The The standard method of carrying linked ammunition for the gun was in 100 rnd plastic boxes which hung from the feed tray. Once clipped on and the feed cover is closed, the ammo box and ammunition are held securely to the weapon. Ammunition was issued in these plastic boxes with six to a special metal ammunition can. Different hangers for these boxes were developed as well as other methods of hold the linked ammunition. The barrel on the Stoner 63A LMG is a quick change style. The carry handle is used to remove the hot barrel without the need of a glove, unlike the M60. To remove the barrel, the operator depresses the barrel catch while the gun is cocked. Using the carry handle it is removed and a new barrel is inserted while depressing the catch.
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©2008 Mongomation
©2008 Mongomation	To ensure that the weapon will stay sighted in regardless of which barrel is in the gun, the front sight is adjustable for elevation and windage. The operator should not use the rear sight windage adjustment for sighting the gun in. The barrels are all zeroed before actual use. This allowed accurate sustained fire unlike the M60 which needed sighting in ever time the barrel was changed.


	The barrel of the Stoner 63A also had a gas adjustment in the front sight block. This allowed the operator to adjust the gas setting based on ammunition as well as fouling. The cyclic rate also varied with the gas adjustment from 700 to 1000 rnds/min. Gas adjustment can be accomplished with the tip of a single round.