Did some training with friends from AZ in Boulder City at https://progunvegas.com over the weekend. I was testing out my AR15 chambered in 762×39(AK ammo). Works great. I recommend this setup to everyone who dont want to pay for high price 223/556 ammo. 762 steel ammo is alot cheaper to shoot and this setup will only require buying a 762 upper and ar15-762 magazine to go with your existing AR15 lower. Shoot me an email if you need help building it [email protected]
