[MaciekA]

Some of you who have G&P rifles or have used G&P mechboxes (and possibly others who own full metal guns) have run into the phenomenon where the main spring "sings" for a moment after firing a shot. You can literally hear it vibrating, a bit like an ultra high frequency door stop. I think that some of the acoustics are attributable to the Aluminum construction of the shell and the actual body of the gun.

In my C8, I replaced the G&P stock with a Madbull T6 Aluminum stock, which actually increases the "cheek weld / ear report" you get from the mechbox via the stock itself.

I have an extra memory foam pillow my wife purchased and then decided right after purchasing was not the right fit for her. We have enough spare pillows for guests so I decided I'd take advantage of the dense memory foam in some of my side projects.

I've recently front-wired my G&P C8, so I had nothing but empty room in my buffer tube. After some experimentation I worked out the maximum slice of memory foam I could pack into the buffer tube without being unable to take it back out if I needed to access the spring guide screw.

The memory foam has a pretty dramatic effect on the acoustics of this particular gun, and the spring singing is non-existent. I've always been bothered by the sort of "empty metal box" sound that my G&P made stock, and this mod dampens that sound to a more pleasing "solid" one. I'm sure to readers of this post it probably sounds ridiculous, but some people who try it will almost certainly appreciate the change.

I'm going to experiment with packing the actual stock (it's one of those mod-stocks) and perhaps the upper part of the handguard with more foam just to see what kinds of effects it has on the acoustics.

I have not yet done any comparison recordings yet or determined whether the rifle is significantly quieter or not (I suspect it's more of a "change" than "attenuation").

Has anyone here experimented with this sort of thing?