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Maxim Defense

Maxim Defense CQB Pistol Brace

Ultra-compact PDW brace system with integrated JP buffer. 4" collapsed length. Found on DDM4 PDW.

Quick Specs

Price
$399
Weight
1 lb 3.2 oz
Brand
Maxim Defense
Category
stock

Features

  • PDW brace
  • 4" collapsed
  • Integrated JP buffer
  • 1.2 lbs

Capability Boosts

Mobility+2
CQB+1

Compatibility Tags

family: ar-pattern

Overview

The Maxim Defense CQB Pistol PDW Brace represents the pinnacle of compact AR pistol design with an ultra-short 5.375-inch collapsed length. At 18.59 ounces, the Gen 6 system integrates a 7075 aluminum alloy construction with SB Tactical's pistol stabilizing brace component. The system includes Maxim's proprietary buffer with options for Standard, Heavy, or 9mm weight JP Silent Captured Springs, providing reliable cycling in an impossibly compact package.

The CQB extends from 5.375 inches collapsed through intermediate positions (6.875 inches first position, 8.375 inches second position) to 9.24 inches fully extended. One-hand operation is possible with the Maxim collapse lever, enabling rapid length adjustments. The brace easily installs on mil-spec AR15 lowers and is compatible with all Maxim Defense CQB series buffer systems. Found on the legendary DDM4 PDW, it represents the shortest PDW brace available.

While the CQB delivers unmatched compactness, the 18.59-ounce weight and approximately $399 price point position it as a premium solution. The integrated JP buffer system requires commitment to the Maxim ecosystem, but for shooters prioritizing absolute minimum length for vehicle use, covert carry, or ultra-compact builds, the Maxim CQB PDW brace is the industry standard for compact AR pistol performance.

Key Features

  • Ultra-compact: 5.375 inches collapsed, 9.24 inches extended
  • Weight: 18.59 oz with integrated buffer system
  • 7075 aluminum alloy construction
  • One-hand operation via Maxim collapse lever
  • Buffer options: Standard, Heavy, 9mm JP Silent Captured
  • SB Tactical brace component partnership
  • Compatible with mil-spec AR15 lowers

Pros

  • +Shortest PDW brace available (5.375 in collapsed)
  • +Integrated JP buffer system included
  • +One-hand operation for quick adjustments
  • +Found on legendary DDM4 PDW
  • +Premium 7075 aluminum construction
  • +Multiple buffer weight options

Cons

  • Expensive at approximately $399
  • Heavy at 18.59 oz vs standard braces
  • Proprietary buffer system (Maxim ecosystem)
  • Complex installation vs standard braces
  • Premium pricing limits accessibility

Detailed Specifications

Material
7075 Aluminum Alloy
weight
18.59 oz
lengthCollapsed
5.375 inches
lengthExtended
9.24 inches
positions
4-position (5.375, 6.875, 8.375, 9.24 inches)
operation
One-hand via Maxim collapse lever
bufferSystem
Integrated JP Silent Captured (Standard/Heavy/9mm)
compatibility
Mil-spec AR15 lowers
includedComponents
Buffer system, brace, installation hardware

Compatible Platforms

+23 more

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