When operators need compact semi-auto firepower that balances concealment with terminal performance, platform-level engineering matters. This review examines a focused build that brings reduced recoil, robust cycling, and a tight footprint for close-quarters engagements and defensive roles.

MAXIM DEFENSE MDX 508

Design highlights and handling

The MAXIM DEFENSE MDX 508 brings an 8.5″ barrel into a compact Semi Auto package to preserve higher muzzle velocities while keeping overall length manageable for mobility. The CQB system is central to that balance: with a CQB brace that adds just 5.375″ to the end of the receiver and a full extension of 10″, operators gain stability without sacrificing the MDX 508’s compactness. That geometry makes it practical for vehicle work, house clearing, and personnel protection duties where space is constrained.

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Recoil management and durability

HATEBRAKE muzzle booster

A standout feature of the MDX 508 is Maxim’s HATEBRAKE muzzle booster. This patent-pending device reduces felt recoil, lowers flash signature, and directs concussion and gases downrange away from the operator—enhancing follow-up shot speed and shooter comfort during extended drills. For compact, short-barrel platforms, suppressing rearward impulse and muzzle flash materially improves control and situational awareness.

Bolt carrier group and buffer system

Maxim’s proprietary bolt carrier group and selectable buffer & spring options emphasize long-term durability and smooth cycling. Those internals reduce wear under high-round-count use, and they help tame recoil impulse through mechanical tuning rather than relying solely on add-on recoil pads.

Practical considerations and pricing

As a Semi Auto in the MDX series, the MDX 508 is offered in several configurations and model options; specific calibers are handled through model choices and dealer listings, so check the retailer for available chamberings. The listed price for this configuration is $2200.99, reflecting the integrated HATEBRAKE, CQB brace geometry, and reinforced internals. For up-to-date purchasing information, View product details and pricing.

For operators seeking a purpose-built compact Semi Auto with thoughtful recoil control and a practical CQB footprint, the MAXIM DEFENSE MDX 508 is engineered for performance-driven environments. Check current availability and complete specifications, or proceed to purchase via the shop page where the product listing links to the retailer’s checkout. Check availability

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