556 vs 9mm BEST For Defense???
This guide explores the suitability of 5.56mm and 9mm calibers for home defense, focusing on AR-15 and AR-9 platforms. It highlights the advantages of the 5.56mm, such as low recoil and ballistic proficiency, while addressing overpenetration concerns. The 9mm AR-9 is presented as a lighter, more compact alternative that can still be equipped with essential accessories. The information is presented with the authority of an experienced firearms instructor.









