An AR-15 style rifle is any lightweight semi-automatic rifle based on the Colt AR-15 design.
The original Armalite AR-15 is a scaled-down derivative of Eugene Stoner's AR-10 design. The then Fairchild Engine and Airplane Corporation division ArmaLite sold the patent and trademarks to Colt's Manufacturing Company in 1959. After most of Colt's patents for the Colt AR-15 expired in 1977, many firearm manufacturers began to produce copies of the Colt AR-15 under various names. Despite the patents expiring, Colt retained the trademark of the AR-15 and is the sole manufacturer able to label their firearms as AR-15.The Federal Assault Weapons Ban restricted the sale of the Colt AR-15 and some derivatives in the United States from 1994 to 2004, although it did not affect rifles with fewer listed features.After the term modern sporting rifles was coined in 2009 by the US National Shooting Sports Foundation, a firearms trade association, it was quickly adopted by much of the industry.In the 2010s, AR-15 style rifles became one of the "most beloved and most vilified rifles" in the United States, according to The New York Times. The rifles are controversial in part due to their use in high-profile mass shootings. Promoted as "America's rifle" by the National Rifle Association, AR-15 style rifles' popularity is partially attributable to proposals to ban or restrict them.

View More On
  1. CharlesAFerg

    Assistance with under-gassed ar15 build?

    After about a year of gathering parts, I finally built this rifle and test fired it. Unfortunately, it seems to be under-gassed. The rifle will fire, but no more than 5 times in a row, will often not strip a round off the mag, and it will not lock back on empty. It is ejecting spent cartridges...
  2. Pnwbrrt

    Scratch piston AR

    Looking for ideas on a piston build. I was originally planning on just using a superlative kit but then my mind started wandering Into the possibilities. I've been exploring the idea of building a modified mr556 system but haven't quite figured out how yet. I'd like to maintain as much "...
  3. Reno

    Durkin Tactical “Black Friday” $220 kit BUYER BEWARE

    I’ve never seen a whole kit for lower. Pretty nuts. I have no idea if this is a worthy company. Just figured I’d share. Got a $30 dollar poverty pony lying around? ETA: READ WHOLE THREAD. NOT A GOOD DEAL. BUYER BEWARE...
  4. P

    AR15 build classes

    Are build classes still a thing? Or is that something better paired with a rifle class right after building a rifle?
  5. StereoDeli

    Build Thread  Sharing my SPR Build - Parts list included

    Having just completed my AR build, I wanted to share with others what went into mine to potentially help inspire your own build. My intention was to put together a budget SPR/DMR that will serve as my bench rest AR but will also remain lightweight and agile enough to be used on the move...
Back Top