This Is What Sets AR-10 and AR-15 Rifle Apart The AR10 and AR15 are solid workhorse weapons, and pretty interchangeable in terms of their style and functionality, but there is one pretty big, fundamental difference: Caliber. The 7.62x51mm (~.308 inch) AR10 was developed by Eugene Stoner way back in the 1950’ and entered production at […]
![Colt AR-15--AR-10-.308](https://80lowers.com/wp-content/uploads/2019/09/Ar-15-Rifle-Colt-Sporter.jpg)