The Anderson AR15A3UPFOR is a stripped upper receiver chambered in .308 Win with a 30-inch barrel. Anderson Manufacturing built this around their standard commitment to consistent quality at a competitive price, and the black finish is clean and even out of the box. 
 
Being stripped, it gives the builder full control over barrel, bolt carrier group, handguard, and furniture. The 30-inch barrel length favors precision work at distance over maneuvering in tight spaces, so it fits long-range target shooting and hunting applications better than a carbine build.