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What is the bulge on the barrel of an Abrams tank?
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September 28th, 2010
What does it do?
Picture:
http://bit.ly/aXKflS
Also, what does the small tube-like laser-sight-looking thing at the end of the barrel do?
And finally, not pictured above, there’s what appears to be a coaxial machine gun right next to the barrel. Which does what?
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