The Diamondback DBX57 pistol in 5.7x28mm with an 8-inch barrel (brand part no. DB1614L001) is an AR-pattern semi-auto pistol built for the flat-shooting 5.7x28mm cartridge, with a 20-round capacity and an M-LOK handguard for accessory mounting. Diamondback Firearms rifles the barrel at a 1-in-9 twist rate and ships the pistol with one 20-round magazine. Among AR-pattern semi-auto handguns, this DBX57 configuration favors shooters who want 5.7x28mm’s flat trajectory in an AR-style platform.

Key Specifications

• The chambering is 5.7x28mm.
• The capacity is 20 rounds.
• The barrel measures 8 inches, with a 1-in-9 twist rate.
• The handguard uses the M-LOK attachment system.
• The platform is AR-pattern.
• The pistol ships with one 20-round magazine.
• The sights are No Sights.
• The action is Semi-Auto.
• Shipping weight of approximately 4.539 pounds.

Frequently Asked Questions

What caliber does this pistol use? 5.7x28mm, known for a flat trajectory and light recoil.

What handguard attachment system does this pistol use? M-LOK.

Buy the Diamondback DBX57 Pistol, 5.7x28mm

An AR-pattern pistol chambered in flat-shooting 5.7x28mm is exactly what this DBX57 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.