450 FPS BB Dents M4 Receiver

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450 FPS BB Dents M4 Receiver

So doing some experiments with accessories, I shot at them with my 450 FPS APS UAR from about a person's length away. The assessories are mounted to the APS M4 URX Raptor quad rail. Afterward, I unmounted everything and tried to remove the M4 magazine. It was jammed. The magazine used to attach and detach easily. I pulled it out hard. But it wwas difficult to put back in. Finally, I realized that the BB's had dented the magazine well (see photo below).

Attached Image:

IMG_20150711_131259.jpg

Jake
Sun, 12 Jul 2015 05:25:35 +0400

I decided that the best course of action to fix it is to shoot it back out from the other side. But I don't want the BB to bounce around and damage the hop-up and gearbox. So I cut a styrofoam to fit the M4 mag well (see photo below).

Attached Image:

IMG_20150711_131522.jpg

Jake
Mon, 13 Jul 2015 00:02:32 +0400

Photo below shows the styrofoam in the mag well.

Attached Image:

IMG_20150711_161041.jpg

Jake
Mon, 13 Jul 2015 00:03:23 +0400

Result wasn't quite what I expected. I figured the shots would dent it outward. But shooting 450 FPS from an inch away produced holes in the metal (see photo below). It did fix the problem. Magazine inserts and removes freely now.

Attached Image:

IMG_20150711_161914.jpg

Jake
Mon, 13 Jul 2015 00:07:12 +0400

Photo below shows the outside of the mag well. I used a small pair of needle nose pliers to remove the jugged edges. Surprisingly, the metal did not bend. It was brittle. As I tried to bend it, pieces just snapped off. I broke various outward curving metal pieces off. Will probably put some hockey tape over the hole.

Attached Image:

IMG_20150711_161906.jpg

Jake
Mon, 13 Jul 2015 00:11:41 +0400

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