Anderson AM-15 5.56 NATO AR-15 with 16 in Threaded Barrel, Midwest Industries 15 in M-LOK Handguard, and Rise Armament RA-140 Trigger
This Anderson AM-15 is a USA-built AR-15 pattern rifle configured with practical upgrades and a clean, modern layout. It features a Midwest Industries 15 in free-float M-LOK handguard, a Rise Armament RA-140 drop-in trigger, and a 16 in threaded barrel capped with a multi-port three-baffle brake. The flat-top A3 upper includes a forward assist, brass deflector, and ejection-port cover, while the lower is marked AM-15 with SAFE/FIRE selector positions.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm is in great shape overall. Minor, superficial scratches and small blemishes are present on exterior surfaces.
What’s Included
- Anderson AM-15 5.56 NATO semi-automatic rifle (as configured)
- 1x 30-round Magpul PMAG (AR-15/M4 pattern polymer magazine)
- Midwest Industries free-float M-LOK handguard (installed)
- M-LOK 1913 accessory rail section installed at 6 o'clock (installed)
- Multi-port three-baffle muzzle brake with jam nut (installed)
- Magpul pistol grip (installed)
The heart of this build is its Midwest Industries 15 in free-float aluminum M-LOK handguard. It provides M-LOK slots at 3, 6, and 9 o'clock for direct accessory mounting, plus segmented Picatinny top-rail islands with T-markings (T16–T50) along the handguard. An M-LOK 1913 rail section is already installed at the 6 o'clock position for immediate accessory use.
The trigger group is upgraded with a Rise Armament RA-140 drop-in trigger, delivering a consistent, modern fire-control feel. Controls include a manual safety selector, and the lower receiver is marked AM-15 with SAFE/FIRE positions. A Magpul pistol grip enhances handling.
The 16 in barrel is threaded and fitted with a multi-port three-baffle brake secured with a jam nut. The flat-top A3 upper includes a forward assist, brass deflector, and ejection-port cover. The system uses a rotating multi-lug bolt and direct impingement operation.
This rifle uses AR-15/STANAG magazines and comes with one 30-round Magpul PMAG. The polymer stock is telescoping with an adjustable length of pull from 11 in to 14 in. The rifle has a matte black finish and ships without sights.

