Availability: In Stock
The Diamondback DB15 Knight's Armament 5.56 NATO rifle is a mid-length direct impingement AR-15 built for shooters who want a reliable, straightforward platform without unnecessary complexity. With a 16-inch chrome-lined phosphate barrel, forged 7075 T-6 aluminum upper and lower receivers, and a 15-inch M-Lok handguard, this rifle delivers the balance of accuracy and maneuverability that works equally well at the range, in the field, or as a patrol rifle. The A2 flash hider keeps muzzle signature down, while the phosphate chrome-lined bolt carrier group and mil-spec trigger are proven Mil-spec components that handle full-power 5.56 NATO loads without flinching.
What sets the DB15 Knight's Armament apart is its thoughtful furniture package. The Magpul MOE K2 grip provides a comfortable, ergonomic hold; the Magpul CTR stock offers a solid cheek weld and adjusts from collapsed to extended length (32 to 35.5 inches overall), letting you tune the length of pull for your body and gear. The A3 flattop receiver with full Picatinny rail gives you a clean platform for any optic you want to run, and the integrated M-Lok rail system on the handguard accepts lightweight accessories without the weight or profile of a full quad-rail design.
Out of the box, you get a loaded magazine—a 30-round Magpul Gen M2 PMAG—and Magpul flip-up front and rear sights, so you can get to work immediately. At just 6.53 pounds, it's light enough to carry all day yet solid enough to shoot accurately at distance. Whether you're a first-time AR builder looking for a complete, quality rifle or an experienced shooter wanting a backup or truck gun, the Diamondback DB15 delivers no-nonsense reliability and versatility.
| Caliber | 5.56 NATO |
| Barrel Length | 16 inches |
| Barrel Finish | Chrome Lined Phosphate |
| Barrel Twist | 1:7 RH |
| Muzzle Thread | 1/2 x 28 (A2 Flash Hider included) |
| Upper Receiver | A3 Flattop Forged 7075 T-6 Aluminum |
| Lower Receiver | Forged 7075 T-6 Aluminum (DB15 Carbon Lower) |
| Receiver Finish | Black Hardcoat Anodize |
| Gas System | Mid-Length Direct Impingement |
| Bolt Carrier Group | Phosphate Chrome Lined M16 BCG |
| Handguard | 15-inch M-Lok Anti-Rotation V2 S-Rail with Full Picatinny |
| Grip | Magpul MOE K2 |
| Stock | Magpul CTR Synthetic, Adjustable |
| Sights | Magpul Flip-Up Front and Rear |
| Trigger | Mil-Spec |
| Magazine (Included) | Magpul Gen M2 PMAG, 30 rounds |
| Overall Length (Collapsed) | 32 inches |
| Overall Length (Extended) | 35.5 inches |
| Weight | 6.53 lbs |
The rifle ships with Magpul flip-up front and rear sights, which allow you to zero your iron sights and use them as co-witness backups alongside an optic, or as your primary sighting system right out of the box.
Yes. The barrel is threaded 1/2 x 28 and includes an A2 flash hider. You can remove the flash hider and install a suppressor, muzzle brake, or other compatible accessory.
You receive the complete rifle, a 30-round Magpul Gen M2 PMAG magazine, and the Magpul flip-up sights mounted and ready to use.
Yes. The 5.56 NATO caliber, adjustable stock for different body types and gear, and light weight (6.53 lbs) make it versatile for range training, competitive shooting, and hunting applications where 5.56 is appropriate. The adjustable stock allows you to dial in the length of pull from 32 to 35.5 inches.
SKU: 198468574 • Weight: 11.9oz
Availability: In Stock
The Diamondback DB15 Knight's Armament 5.56 NATO rifle is a mid-length direct impingement AR-15 built for shooters who want a reliable, straightforward platform without unnecessary complexity. With a 16-inch chrome-lined phosphate barrel, forged 7075 T-6 aluminum upper and lower receivers, and a 15-inch M-Lok handguard, this rifle delivers the balance of accuracy and maneuverability that works equally well at the range, in the field, or as a patrol rifle. The A2 flash hider keeps muzzle signature down, while the phosphate chrome-lined bolt carrier group and mil-spec trigger are proven Mil-spec components that handle full-power 5.56 NATO loads without flinching.
What sets the DB15 Knight's Armament apart is its thoughtful furniture package. The Magpul MOE K2 grip provides a comfortable, ergonomic hold; the Magpul CTR stock offers a solid cheek weld and adjusts from collapsed to extended length (32 to 35.5 inches overall), letting you tune the length of pull for your body and gear. The A3 flattop receiver with full Picatinny rail gives you a clean platform for any optic you want to run, and the integrated M-Lok rail system on the handguard accepts lightweight accessories without the weight or profile of a full quad-rail design.
Out of the box, you get a loaded magazine—a 30-round Magpul Gen M2 PMAG—and Magpul flip-up front and rear sights, so you can get to work immediately. At just 6.53 pounds, it's light enough to carry all day yet solid enough to shoot accurately at distance. Whether you're a first-time AR builder looking for a complete, quality rifle or an experienced shooter wanting a backup or truck gun, the Diamondback DB15 delivers no-nonsense reliability and versatility.
| Caliber | 5.56 NATO |
| Barrel Length | 16 inches |
| Barrel Finish | Chrome Lined Phosphate |
| Barrel Twist | 1:7 RH |
| Muzzle Thread | 1/2 x 28 (A2 Flash Hider included) |
| Upper Receiver | A3 Flattop Forged 7075 T-6 Aluminum |
| Lower Receiver | Forged 7075 T-6 Aluminum (DB15 Carbon Lower) |
| Receiver Finish | Black Hardcoat Anodize |
| Gas System | Mid-Length Direct Impingement |
| Bolt Carrier Group | Phosphate Chrome Lined M16 BCG |
| Handguard | 15-inch M-Lok Anti-Rotation V2 S-Rail with Full Picatinny |
| Grip | Magpul MOE K2 |
| Stock | Magpul CTR Synthetic, Adjustable |
| Sights | Magpul Flip-Up Front and Rear |
| Trigger | Mil-Spec |
| Magazine (Included) | Magpul Gen M2 PMAG, 30 rounds |
| Overall Length (Collapsed) | 32 inches |
| Overall Length (Extended) | 35.5 inches |
| Weight | 6.53 lbs |
The rifle ships with Magpul flip-up front and rear sights, which allow you to zero your iron sights and use them as co-witness backups alongside an optic, or as your primary sighting system right out of the box.
Yes. The barrel is threaded 1/2 x 28 and includes an A2 flash hider. You can remove the flash hider and install a suppressor, muzzle brake, or other compatible accessory.
You receive the complete rifle, a 30-round Magpul Gen M2 PMAG magazine, and the Magpul flip-up sights mounted and ready to use.
Yes. The 5.56 NATO caliber, adjustable stock for different body types and gear, and light weight (6.53 lbs) make it versatile for range training, competitive shooting, and hunting applications where 5.56 is appropriate. The adjustable stock allows you to dial in the length of pull from 32 to 35.5 inches.
SKU: 198468574 • Weight: 11.9oz