Many of us AR owners love to use our ARs for more than just shooting paper. We like to hunt with them, we practice self defense with them, teach our family and friends how to safely handle firearms and we also like to use them for Varmint control. Most Varmint style ammunition uses a light weight polymer tip and usually comes in much lighter grain projectiles than your standard .223/5.56 ammo. The issue is lighter ammo like that typically needs a different twist rate than most AR barrels to stabilize the bullet and shoot accurate. With Varmints usually being smaller, fast moving animals, accuracy (or lack thereof) can be an issue. Rainier Arms recognized a need for this type of barrel and has introduced their new barrels with .223RVC (Rainier Varmint Chamber) that is specifically designed to shoot the lighter Varmint rounds with Sub-MOA accuracy guaranteed with match ammo.
These new barrels start out as Rock Creek stainless steel match grade blanks and then machined to Rainier Arms strict specifications. The barrels are 22″ long with 1:12 Twist, have M4 feed ramps and a .936 Gas Block Seat.
The only thing you need to decide is if you want a barrel finished with a Target Crown or threaded 1/2×28 for standard AR-15 muzzle devices.
These are some pretty great looking barrels and would definitely be the perfect start to your next varmint rifle build. I’m picturing these under a nice free floated 15″ tube of some sort taking out varmints like nobodies business. You can take a look at these two barrels and get more information on them at www.RainierArms.com.