That isn't doing anything for me. I would rather just have 5 uppers.
The whole caliber mix up is why my 300 blk has fde accessories including the magazines. That way I can avoid any possible mix up on my end.Seems like a lame knock off of the Windham RMCS, which also seems like a knockoff of the COBB MCR. Which I agree with you all, I would rather have multiple AR's...
I really worry about the 300blk/5.56 uppers getting mixed up though. I just know it is an accident waiting to happen for many owners.
http://www.thetruthaboutguns.com/20...-weaponry-multi-caliber-system-ar-rifle-rmcs/
https://www.northwestfirearms.com/t...g-inc-mcr-in-7-62x51mm-takes-ar10-mags.74237/