AGD's extended bolt

[aNtHrAx32]

I went ahead and bought the AGD extended bolt for the RT (as for some reason, I can't help spending money on my gun... and my old bolt was somewhat oxidized). I've heard it reduces blowback (specifically in veritcal feed situations), and improves efficiency (which makes sense, as they just extended the wall of the bolt more)... also, I heard it reduces ball breakage (most likely due to the reduced blowback...?). Someone please tell me if these are true or if it was BS to get me to buy it.

[Halliday]

Of those improvements, all I have heard the long-nose bolt does is reduce blowback, which helps std feed markers most. I doubt it'll hurt anything.

Let us know if it helps efficiency and reduces ball bustage.