When it comes to manipulations of almost all AR15 rifles, aside from the trigger, the most used and manipulated control is the charging handle. It’s what charges and clears the weapon and is directly linked to the BCG (Bolt Carrier Group) and the only way to manipulate it. This makes the charging handle a very important piece of the firearm. The Mil-spec charging handles leave a lot to be desired. The area you have to wrap your fingers around is very small and becomes increasingly more difficult when you are using gloves or if your hands are wet, sweaty or dirty. For some, it may work just fine for a casual day on the range, but if you are to do any sort of serious shooting, upgrading is a must.
The AR-15 has become one of the most popular firearms among American gun owners and for good reason. Due to its lightweight frame, high level of accuracy and versatility, the weapons system is a testament how innovation can transform an older design. For years now, firearms accessory manufacturers have been turning out various parts for the AR-15. While many still prefer to buy pre-built firearms, many others enjoy shopping around for the coolest and best parts on the market and create something special and tailored for them. One of the fundamental elements of the build starts with an upper receiver.
As someone who has used AR-15s and their government-issued brethren for well over fifteen years, I've gradually developed a list of accessories that I think are essential on an AR. While I usually build my own guns now, there are plenty of people buying an AR for the first time. If you're one of them, I hope this helps. Please keep in mind that I tend to focus on defensive rifles, so if you're just getting a plinker, or working precision, your needs may vary.