Why would you get a .22 cal AR?

[NavyEngineer]

I enjoy shooting regularly with my 22lr conversions. It's quick and easy to pull the bolt and carrier out of an upper and insert the conversion kit. The conversion allows me to shoot 22lr in my surplus M16A1, M16A2, M4, and Commando uppers, and I doubt I could ever wear a barrel out shooting 22lr through it. I generally shoot cheap bulk pack ammo, and the occasional dud round gives you practice with malfunctions as well. I used a mix of 22lr and 5.56 to build my marksmanship skills and proficiency before heading to SC for Army pre-deployment training for Sailors last year.