AR10 Parts

Similar but different, the modern-day AR-10 will differ from your AR-15 with key structural and performance factors to consider.

Caliber is the first, and probably the most obvious difference between the two. Some of the most common calibers for the modern AR-10 include 308 Winchester (7.62x51 NATO) and 6.5 Creedmoor while AR-15s will mostly be chambered in 5.56mm/.223.

The calibers are what will lead to some minor, but notable performance differences including the AR-10's heavier weight and limited magazine capacity (results from the AR-10's heavier ammunition). The powerful round and lower muzzle velocity in an AR-10 will also prove a flatter trajectory and longer effective range.

The overall size and mechanics will rack up a higher cost compared to an AR-15 option, one of the many reasons the AR-10 is less popular. AR-15's close combat and tactical benefits are some more of those reasons, but with longer effective ranges and quality performance, there's no doubt an AR-10 is a fun build and a great rifle option.

With all these performance considerations, why and when should you use an AR-10? Using Winchester .308 rounds, the standard NATO 7.62mm round, or even 6.5 Creedmoor, you’ll find the heavier ammunition ideal for long-distance shooting. 

An AR-10 will serve in a few main areas including competition shooting, military snipers, and is especially reliable in hunting large game. So, if you're looking for more stopping power, range, and a unique firearm, the AR-10 could and should be your next build.