DPMS Panther Arms A-15 .300 AAC Blackout AR-15, 16 in Threaded Barrel, Flat-Top Upper, A2 Front Sight, Collapsible Stock
This A-15 pairs a DPMS Panther Arms lower with a non-factory .300 AAC Blackout upper, offering a clean, purpose-built configuration with verified .300 BLK barrel marking. The lower carries the St. Cloud, MN rollmark, aligning it with the pre-2020 DPMS production era. A 16-inch stainless-finish, 1:7-twist barrel, flat-top T-marked Picatinny upper, and an A2 front sight base round out a straightforward, well-equipped setup.
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: Minor scratches and blemishes are present. The front sight block shows light pitting.
What's Included
- DPMS Panther Arms A-15 .300 AAC Blackout semi-automatic rifle (configured with non-factory .300 BLK upper)
- 1x 30-round Magpul PMAG GEN M3 AR/M4 polymer magazine (body marked 5.56x45)
This rifle uses a DPMS A-15 lower that is marked .223–5.56, while the current configuration is .300 AAC Blackout as indicated by the barrel stamp. It retains the familiar AR-15 direct impingement, semi-automatic operating system and U.S. manufacture.
The 16-inch stainless-finish barrel features a 1:7 twist and a threaded muzzle capped with an A2 birdcage flash suppressor and crush washer. This setup supports standard .300 BLK use with a twist rate suited to a wide range of projectile weights.
The flat-top upper receiver provides a T-marked Picatinny rail (T2–T12) along with a forward assist, case deflector, and ejection-port cover. An A2 front sight base with bayonet lug and front sling swivel is installed; no rear sight is included.
Furniture includes two-piece, carbine-length ribbed polymer handguards and a 6-position M4-style collapsible stock with approximately 11–14.5 inch length-of-pull adjustment. An aftermarket UTG rubberized finger-groove pistol grip is installed for a secure hold.
The lower shows the St. Cloud, MN rollmark associated with the pre-2020 DPMS era. The aluminum receivers wear a black anodized finish, and the rifle ships with one 30-round Magpul PMAG GEN M3 polymer magazine (body marked 5.56x45). Capacity is 30+1.