Anderson Manufacturing AM-15 AR-15 5.56mm NATO with Bear Creek Arsenal Side-Charging Upper, 16" Barrel, SIG SAUER ROMEO-MSR
This custom AR-15 build combines a Bear Creek Arsenal side-charging upper. It is chambered in 5.56mm NATO and set up with a free-float M-LOK-style handguard, full-length Picatinny top rail, and an installed SIG SAUER ROMEO-MSR red dot. The rifle is finished in matte black/gray and includes flip-up iron sights and a sling.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: This firearm is in solid shape with some scratches and blemishes present. The bore is clean and shiny.
What's Included
- SIG SAUER ROMEO-MSR red dot (installed)
- Flip-up iron sights (installed; brand not visible)
- Rifle sling
- 1x 30-round detachable AR-15 magazine (polymer; marked "30")
The lower receiver is marked ANDERSON MANUFACTURING with the horse logo, HEBRON, KY, AM-15, and MULTI CAL. The upper receiver and rail are marked BEAR CREEK ARSENAL, reflecting the mixed-manufacturer configuration of this build.
The side-charging setup is paired with a threaded/plug-style rear closure at the back of the upper, rather than a standard rear charging-handle opening. Up top, the rifle uses a full-length Picatinny rail that supports the installed ROMEO-MSR optic and the included flip-up iron sights.
It features a 16" barrel and a free-float M-LOK-style handguard with rail space available. A muzzle device is present, but its specific type is not identified.
The rifle is equipped with an adjustable stock and a Magpul pistol grip. Capacity is listed as 30+1 using the included 30-round detachable magazine.