Ask the Community

Firing .223 in a .223 chamber, or a 5.56 chamber, is not a problem. But firing real-deal 5.56 ammo in a .223 chamber can be a big problem. Read more: http://www.rifleshootermag.com/rifles/ar-15/5-56-and-223-are-they-different/#ixzz4tL5LEOKR