Noun

(head)

(plural only, bodybuilding, slang) Well-developed muscles of the upper arm, especially the biceps and triceps.

* 2005 , Joe Kita (ed.), Men's Health Best: Arms , page 6

And there's still no better way to throw down the fitness gauntlet that to roll up your sleeves and unveil some powerful guns .

* 2010', Mark Alvisi (quote from a reader), "Mark of a Champion", ''Muscular Development?'' ' 47 (1): 350

I read in another magazine about a workout that can put a whole inch on your arms in just one day! Obviously that sounds awesome, because my guns are only 15 inches.

Noun

(-)

Weapons, collectively; as, an array of weaponry.

*{{quote-magazine, date=2013-06-07, author=(Gary Younge)

, volume=188, issue=26, page=18, magazine=(The Guardian Weekly) , title= Hypocrisy lies at heart of Manning prosecution , passage=The dispatches […] also exposed the blatant discrepancy between the west's professed values and actual foreign policies. Having lectured the Arab world about democracy for years, its collusion in suppressing freedom was undeniable as protesters were met by weaponry and tear gas made in the west, employed by a military trained by westerners.}}