Precision Rifle Gear Where's the thread about 3d printed brass catchers???

m1match

Sergeant
Full Member
Minuteman
Supporter
Jan 2, 2003
862
589
Western US
My search skills are eluding me. A while ago there was along thread here with a members 3d printed brass catchers that stuck to the reciever with magnets. Can someone point me to that thread??

Thanks,
 
I have one of these, but not sure if that's what you're talking about...