What is the thing you put in the chamber to see down the barrel called

[HussarPL]

They look like a plastic 'L'

Been googling but can't figure out what they are called.

[Fretman]

They look like a plastic 'L'

Been googling but can't figure out what they are called.

Fibre optic bore light.

[30-06BangStix]

Google Empty chamber indicator or flag.

[juanvaldez]

bore light,

[tootall]

Fibre optic bore light.

this^

[manitou210]

bore scope

http://www.gradientlens.com/Rigid-Bo...Pro-Rigid.aspx

[wd123]

personally i use a flashlight. does the job just fine

[islandkent]

I have one of those little flex flashlights you get at the dollar store. Has a lazer pointer on it also. Works great!

[gunaddict99]

I found the Hoppe's branded light to be too dim and therefore useless.

[scout_289]

Piece of tin at an angle to act as a mirror for the strong light on my loading bench.

Dazzling.