1 Chronicles 12:2

[They were] armed with [the] bow, [able to shoot] right-handed or left-handed, [slinging] stones or [shooting] arrows with the bow; [they were] kinsmen of Saul from Benjamin.

Judges 3:15

And the {Israelites} cried out to Yahweh, and Yahweh raised up for them a deliverer, Ehud son of Gera, a Benjaminite and {a left-handed man}. And the {Israelites} sent a tribute to Eglon king of Moab {through him}.

Judges 20:16

From all these troops [were] seven hundred well-trained men {who were left-handed}; each one could sling with a stone at a hair and not miss.

1 Samuel 17:49

Then David put his hand into the bag and took a stone from it and slung [it]. He struck the Philistine on his forehead, and the stone sank into his forehead, and he fell on his face to the ground.

1 Chronicles 12:29

From the men of Benjamin, kinsmen of Saul, three thousand, and {even still} the majority of them {remained loyal} to the house of Saul.

Treasury of Scripture Knowledge

Summary

They were armed with bows, and could use both the right hand and the left in hurling stones and shooting arrows out of a bow, even of Saul's brethren of Benjamin.

In hurling

Bible References

Could use

Judges 3:15
And the {Israelites} cried out to Yahweh, and Yahweh raised up for them a deliverer, Ehud son of Gera, a Benjaminite and {a left-handed man}. And the {Israelites} sent a tribute to Eglon king of Moab {through him}.
Judges 20:16
From all these troops [were] seven hundred well-trained men {who were left-handed}; each one could sling with a stone at a hair and not miss.

In hurling

1 Samuel 17:49
Then David put his hand into the bag and took a stone from it and slung [it]. He struck the Philistine on his forehead, and the stone sank into his forehead, and he fell on his face to the ground.