Diamondback DB15 5.56 NATO AR-15 Rifle, 16 in 4150 CrMoV Nitride Barrel, 15 in M-LOK Handguard, Black - DB15YPB
Built in Cocoa, Florida, the Diamondback DB15 offers a well-appointed AR-15 configuration with a 16 in 4150 CrMoV nitride barrel, a 15 in free-float M-LOK handguard, and forged 7075-T6 aluminum receivers. It features a flat-top A3 upper with an integral Picatinny rail, a carbine-length gas system, and a shot-peened, MPI bolt carrier group. This example is chambered in 5.56 NATO and is in very good overall condition.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore 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 with minor scratches and blemishes visible from prior handling.
What’s Included
- 1x 30-round USGI-pattern metal AR-15 magazine
- Diamondback Firearms DB15 owner's manual
- Diamondback factory cardboard box
The DB15 uses a direct impingement action paired with a carbine-length gas system for the 16 in barrel. The barrel is made from 4150 CrMoV steel, finished in nitride, and threaded 1/2x28. An A2 birdcage flash hider is installed, and the 1:8 in RH twist supports a wide range of 5.56 NATO loads.
The 15 in free-float aluminum M-LOK handguard features the DB shield logo and short Picatinny segments at the rear and front. The flat-top A3 upper provides an integral Picatinny rail and includes a forward assist and brass deflector. The ejection-port cover is laser-marked "5.56" and "NATO."
Forged 7075-T6 aluminum receivers are black anodized and marked "DIAMONDBACK FIREARMS LLC COCOA, FL USA," with the selector marked "SAFE/FIRE" and the lower marked "CAL MULTI" and "DB15." Controls include a right-side magazine release, manual safety, single-stage trigger, and a standard charging handle.
The bolt carrier group uses an 8620 carrier that is shot-peened and MPI inspected. Furniture includes a collapsible 6-position stock and an A2-style black polymer pistol grip. Capacity is 30+1. Approximate weight is 6.6 lb with an overall length of about 32–35.25 in. The packaging label indicates item code DB15YPB matching the rifle.