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Maxim MDX 508-CP 300 Blackout 8.75 20+1 FDE Pistol CPB BRACE

Product Code : 680017479220

Mfg Item #: MXM-47922


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The PDX redefined compact firepower in terms of size, durability, and accuracy. The next size up in the MDX family is the 508. With the same heart and soul of the proven PDX, the 508 features an 8.5” barrel, ideal for when maximum concealment and compactness are important, but not as crucial.

The 8.5” barrel delivers higher velocities while the CQB system plays a key role in the compact size. The CQB brace adds a mere 4” to the end of the receiver with a full extension of 8.75”, providing complete comfort to the operator. Our proprietary bolt carrier group and buffer & spring options ensure extreme durability and smooth cycling.

Our MDX series firearms are also equipped with the Maxim’s HATEBRAKE muzzle booster. This patent-pending device significantly reduces recoil, decreases the flash signature, pushes gasses and concussion waves downrange away from the operator, and improves overall performance.


Calibers: 300 BLACKOUT
Barrel length: 8.5”Overall length: 21.5” – 23” (collapsed)
Configurations: CQB Pistol

Magazines: Each MDX508 ships with one 20rd magazine.

Manufacturer Maxim Defense
Pricing Unit GN
Model MDX 508-CP
UPC 680017479220
SKU MXM-47922
Width 12.2000
Length 22.0000
Height 4.0000
Weight 9.1000
Accessories Hate Brake
Action Semi-Auto
Barrel Finish Black
Barrel Length 8.75"
Caliber 300 Blackout
Capacity 20Rd
Frame Material Aluminum
Grip Material POLYMER
Magazine Capacity 20.0000
Muzzle Maxim Hate Brake
Number Of Magazines Included 1.0000
Search Code MAXIM
Sights None, Optic Ready
Stock Description Maxim SCW
Stock Material SYNTHETIC
Type AR
Type Action Function SEMI-AUTO

Determined at checkout.