“...Are you coming?” He muttered.
But the second shot had already been fired.
The Auto Defensors’ lightning activated to intercept the arrow, but although several bolts struck home, it slipped through the gaps in the bolts to fly straight at Gilgamesh. The speed at which electricity travels through air — that is, the speed of lightning — while slower than light, still should to have been more than sufficient to catch any ordinary arrow. The speed of that arrow, however, was beyond human limitations.
Gilgamesh immediately materialized his armor, and swept the arrow aside with his left gauntlet. It seemed that it could not completely kill the shot’s momentum, however, because a portion of the armor cracked, and fragments of gold showered the floor.
“...Oh-ho.”

Fate/Strange Fake: Volume 2, Chapter 6 ("Day 1, Noon")