1. Firearms
  3. Class 3 NFA Items & Silencers
  5. Integrally Suppressed Firearms

Maxim Defense SDX RFLX 300 Blackout Integrally Suppressed Pistol
NFA Item - No Returns

Maxim Defense SDX RFLX 300 Blackout Integrally Suppressed Pistol
MAXIM DEFENSE SDX RFLX 300 Blackout Integrally Suppressed Pistol
MAXIM DEFENSE SDX RFLX 300 Blackout Integrally Suppressed Pistol
MAXIM DEFENSE SDX RFLX 300 Blackout Integrally Suppressed Pistol
MAXIM DEFENSE SDX RFLX 300 Blackout Integrally Suppressed Pistol
MAXIM DEFENSE SDX RFLX 300 Blackout Integrally Suppressed Pistol
$3,695.00

In Stock with FREE shipping
No Returns

Class 3 / NFA Items are not eligible for returns. To learn more about purchasing Class 3 / NFA Items, click here.

Product Description

The SDX RFLX is Maxim Defense’s next-gen integrated suppressed weapon system. Chambered in .300 Blackout and built on the proven SDX 508 platform, this pistol is engineered as a complete solution for superior performance. At its core is the Maxim M-Kore™ technology and new RFLX chamber design, a true over-the-barrel suppressor that maintains a compact footprint by extending rearward over the barrel, reducing overall length by over 3 inches compared to traditional setups. The result is a system that’s optimized for maneuverability without sacrificing balance, accuracy, or reliability.

The RFLX delivers 129 dB at the shooter’s ear with subsonic ammunition, while a tuned gas system minimizes blow-back and enhances longevity. Built for tactical use, defense, and serious shooters, the SDX RFLX offers exceptional handling and rugged durability in one tight, streamlined package.

Firearm Features

  • Full length 1913 Pic Rail
  • Military Grade Materials
  • M-Slot™ compatible handguard
  • SDX two-piece handguard
  • Enhanced MIL-SPEC Lower Receiver Parts & Components

Firearm Specifications

  • Manufacturer: Maxim Defense
  • Model: SDX Reflex Pistol
  • Caliber: .300 BLK
  • Barrel Length: 8.5"
  • Weight: 8 lbs. 3 oz.
  • Material: 17-4 Stainless Steel & 6AI-4V Titanium
  • Overall Length: 28.75"
  • Trigger: ALG Trigger
  • Brace: Gen:6 CQB Brace
  • Materials: 17-4 Stainless Steel; 7075 and 6061 Aluminum
  • Finish: Type III Hard Coat Anodized
  • Integrated Suppressor Specs:
    • Overall Length: 10.1"
    • Back over the Barrel Length: 3.09"
    • Length Added to Muzzle: 6.9"
    • Outer Diameter: 1.75"
    • Materials: Titanium; 17-4 SS
    • Finish: DLC (Diamondlike Coating); Cerakote
    • DB at Shooter's Left Ear: Subsonic 129 dB; Supersonic: 134 dB
    • Firing Schedule: Full Auto Rated

Customer Comments & Questions

Customer Reviews

No reviews have been written for this product.

Write a review
Back to top