Chirping

[Advanced]

That's right, kind of like a bird.

When I shoot my level 10 RT, sometimes there's a 'chirping' noise with the pop. What causes this?

[athomas]

Do you have a crown point barrel? Some barrels resonate when the bolt spring compresses. What you hear is called "spring ping". It was really noticeable in mags with the original crown point barrels.

[Advanced]

It just needed a little oil, went away. Nothing was wrong with it, no leaking, etc.

[Frizzle Fry]

I get this every time I install new carriers. Goes away on its own.

[athomas]

I never heard a chirp caused by carriers and orings. Interesting.