#Experimentation

In a recent post, I discussed four ballistics myths that I’ve heard over the years, and why they are just that – myths. One of these was the myth that the momentum of a projectile is equivalent or otherwise indicative of the stopping power of that projectile. I have for several years now been arguing that it is not, and the subject comes up again and again in my comments, so it’s high time I directly addressed it in a post. The short answer is “no”, as I wrote in “4 Ballistics Myths”:

Recently I stumbled upon this gem of creativity, a fellow somewhere in the US who designed and put together a bullpup configuration of an AR15 by re-configuring the trigger group into a stock, putting a pistol grip and trigger guard along the rail system, raising the EoTech by about 2 inches with a rail riser and then adding a tube above the buffer tube to form a cheek weld while still keeping the charging handle in the original location. We’ve blogged about various AR bullpup experiments before on TFB, one that only had a trigger bar mounted to a grip on the forward rail, and another one even more extensively modified than this one, in completely redesigning the lower receiver to accommodate the upper receiver. However this design seems to be much more compatible with drop in parts to the parts that this guy came up with. He has also done the exact same thing to an ARAK upper receiver, which of course can work with an AR lower as it is. So far it seems that this fellow has just done it the one time in 2014, and hasn’t shown any subsequent modifications since that time. It would be interesting to see if this idea ever takes off in the future, sort of how similar ideas are applied to AK and M14 bullpup drop ins.

Battle Arms Development really created a “Bad ASS” design with their ambi-safety systems. Taking it a step further for those who want to print at home, user Down0047 has posted up 3-D CAD files of the system allowing users to design and print their own selectors.