Anderson AM-15 .300 AAC Blackout, 7.5" AR-15 Build with Toolcraft BCG, OD-Green M-LOK Handguard, SIG SAUER ROMEO5
This Anderson AM-15–based .300 AAC Blackout build combines a compact 7.5" barrel with a Toolcraft bolt carrier group, an OD-green aluminum M-LOK handguard, and a factory-mounted SIG SAUER ROMEO5 red-dot sight. It pairs an Anderson lower with a flat-top .300 BLK–marked upper featuring a forward assist and ejection-port dust cover, plus flip-up sights and Magpul polymer furniture. The package is completed with a 30-round Hexmag and a continuous top rail for straightforward setup.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are visible scratches and blemishes on the exterior surfaces.
What’s Included
- SIG SAUER ROMEO5 red-dot sight (mounted on the upper Picatinny rail)
- Polymer flip-up sight (installed, front position)
- Polymer flip-up sight (installed, rear position)
- Polymer angled foregrip (installed)
- One 30-round Hexmag HX-AR Series 2 polymer magazine
Built on an Anderson AM-15 lower receiver, this AR-15–pattern firearm uses 7075-T6 aluminum receivers finished in Type III hardcoat anodizing. The flat-top upper has a forward assist and an ejection-port dust cover marked ".300 BLK," with the forging mark "A" on the receiver. A continuous top rail runs from the upper onto the handguard, and the lower retains a left-side safety selector and STANAG-pattern magazine interface.
Chambered in .300 AAC Blackout (7.62x35mm), the configuration features a 7.5" barrel with a threaded muzzle and an A2-pattern birdcage flash hider. The system operates via direct impingement, consistent with AR-15 design. Capacity is 30+1 using standard magazines.
The OD-green aluminum M-LOK handguard provides modern accessory mounting while keeping weight down. Magpul polymer furniture includes the pistol grip and a buttstock mounted on a carbine receiver extension. A polymer angled foregrip is installed for added front-end control.
Sighting is handled by installed flip-up iron sights, complemented by a SIG SAUER ROMEO5 red-dot optic for fast target acquisition. Internally, a Toolcraft-marked bolt carrier group is fitted. The package includes one 30-round Hexmag HX-AR Series 2 polymer magazine. Made in the United States.