Thought i would share this, it was a live chat done by Military Arms Channel about an hour or so ago.
Former ATF Employee Speaks Out About Rate Increasing Devices
I was bored one night watching people shooting their AK's with bumpski stocks. And created a bumpfire stock from a crutch in 30 minutes and named it the crutchski. Lol The funny thing is that it works very well. So now anyone that has a crutch sitting in the garage or finds one in a thrift store...