Working up loads and catching brass (AR)

[JMorris]

Working up loads on a non .223 AR recently in the rain and cold, I decided that it would be nice to have a brass catcher for the rifle and bought a $7 one that worked but not the best mounting system, so another $10 for a QD mount off of eBay and a 3/8 strip of 1/8" steel and I had found a use for a section of the rail and a brass catcher that mounts and unmounts quickly and is always lined up with the ejection port.

 

[dennishoddy]

Good idea. I have one like in the bottom of the pic. Seems the rounds build up where the net turns down, but a quick shake they fall.
Your idea looks great.

 

[JMorris]

Install it with the dust cover closed.

When you charge the rifle it will flip open over the bottom of the bag and prevent the build up/excape.