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DBF DBX57 5.7X28 8 BLK M-LOK 20RD — view 1

DBF DBX57 5.7X28 8 BLK M-LOK 20RD

5.7 x 28 mm — DBX57 — 8"

SKU: BILL|DBF DB1614L001 UPC: 810035752696

Member Price

$940.00

In Stock In Carthage
Shipping Available
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Nov 3, 2026

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About This Product

Action-Type: Semi-Auto – Operating System: Locked Breech Dual Gas Piston – Caliber: 5.7x28mm – Frame: 7075 Aluminum Hard Coat Anodized – Handguard: 6061 Aluminum Hard Coat Anodized M-LOK Compatible – Barrel Length: 8” – Twist Rate: 1:9 RH – Barrel Muzzle Threads: 1/2×28 RH – Muzzle Device Included: DBX Muzzle Device – Trigger: Standard AR15 Mil-Spec – Grip: MagPul MOE K – Sights Included: NONE – Magazine: 20 Round (FN Five-SeveN compatible) – Overall Length: 15.25” – Overall Height: 7.3” – Overall Width: 1.75” – Weight (With Empty Magazine): 3.0lb

Technical Specifications

Manufacturer Diamondback Firearms
Manufacturer Part Number DB1614L001
Action Semi-Auto
ATF Type Pistol
Barrel Length 8"
Caliber/Gauge 5.7 x 28 mm
Capacity 20
Color Black
Length 23
Model DBX57
Number of Magazines 1 20rd. Magazine
Package Height 9.0
Package Width 3.5
Product Type AR
Rate of Twist 1-in-9
Safety Yes
Shipping Weight 4.539
Sights No Sights

FFL REQUIRED: This firearm must ship to a licensed FFL dealer. Federal law sets minimum age requirements, and every transfer requires a background check and all required ATF paperwork. State and local laws apply.

Shipping Policy

Firearms can only ship to a valid Federal Firearms License (FFL) holder — never directly to a residence. Provide your dealer’s FFL at checkout, or have them email a copy to us, and we’ll verify it before your firearm leaves our shop.

Every transfer requires a background check and the completion of all required ATF paperwork. Buyers must be at least 21 years old to purchase a handgun, and at least 18 years old to purchase a long gun.

Shipping is calculated at checkout. Local pickup is always available right here in Carthage.

Return Policy

Once a firearm has been transferred to you, federal law generally prevents us from accepting it back as a return.

If a firearm arrives defective, it’s handled through the manufacturer’s warranty — and we’ll help you coordinate that process at no charge.

Questions about any of this? Call us at (417) 358-5700 — see our Store Policies for full details.

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