Maxim Defense SPS 505 PDX — 7.62×39 AR Pistol, 5.5" Barrel, Urban Gray Anodized, M-LOK® Handguard, HATEBRAKE™, ALG Combat Trigger, SCW Pistol System, 20+1 (MXM-50840 | MXM50840 | UPC 680017508401)

Compact, controllable, and built for close quarters—the Maxim Defense SPS 505 PDX in Urban Gray is a premium AR-pattern pistol chambered in 7.62×39 with a remarkably short 5.5" barrel. Designed to deliver decisive performance where inches matter, this PDX features Maxim’s signature HATEBRAKE™ muzzle device to push blast forward, the ultra-short SCW Pistol System for minimal overall length, a crisp ALG Combat Trigger, and an M-LOK® compatible free-float handguard for mission-essential accessories. With a 20-round magazine included, MXM-50840 arrives ready for home defense, vehicle deployment, and high-tempo training.

Why the SPS 505 PDX in Urban Gray

• Serious Power, Tiny Footprint: The proven 7.62×39 cartridge maintains authoritative terminal performance out of a compact 5.5" tube—ideal for CQB and confined spaces.

• HATEBRAKE™ Blast Management: Directs gas forward to reduce side concussion and overpressure—critical in rooms, hallways, or vehicles.

• SCW Pistol System: Maxim’s ultra-short receiver extension keeps OAL to a minimum while preserving reliable cycling and controllability.

• ALG Combat Trigger: Clean break and short reset for faster, more accurate shot strings when seconds count.

• Urban Gray Anodized Finish: Durable, low-glare coating that blends modern aesthetics with hard-use protection.

• M-LOK® Accessory Ready: Rigid, free-float handguard provides real estate for lights, switches, handstops, and QD sling points without unnecessary weight.

Key Features & Specifications

• Model: SPS 505 PDX

• Type: Semi-automatic AR pistol

• Caliber: 7.62×39

• Capacity: 20+1 (includes one 20-round magazine)

• Barrel: 5.5", threaded, fitted with HATEBRAKE™ blast-redirecting device

• Handguard: M-LOK® compatible, free-float

• Trigger: ALG Combat Trigger

• Operating System: AR-pattern, tuned for short-barrel reliability

• Receiver / Finish: Aluminum, Urban Gray anodized

• Pistol System: SCW Pistol System (ultra-compact receiver extension)

• Safety: Manual safety selector

• Included: (1) magazine; owner’s materials (contents may vary by distributor)

• Part Numbers: MXM-50840 / MXM50840

• UPC: 680017508401

Performance You’ll Notice

• Manageable Signature: The HATEBRAKE pushes blast forward, improving comfort and communication—especially indoors or around teammates.

• Fast, Precise Control: The ALG trigger enables predictable breaks and quick resets to keep splits tight and hits consistent.

• Ultra-Compact Handling: The SCW system and short handguard make the PDX exceptionally maneuverable in doorways, hallways, and vehicles.

• Consistent Cycling: Maxim’s short-barrel tuning supports reliable function with quality 7.62×39 loads.

Ideal Use Cases

• Home & Property Defense: Compact size, reduced side blast, and authoritative 7.62×39 performance at defensive distances.

• Vehicle/Executive Protection: Stows in tight compartments; deploys quickly without giving up terminal effect.

• Training & CQB Drills: Excellent for low-light work, movement, and barricade positions; pairs perfectly with a white light and red dot.

• Ranch/Overland: Durable finishes and dependable mechanics for daily, pack-in utility.

Smart Setup Ideas (Non-Instructional)

• Optics: Closed-emitter red dot or robust micro sight; verify mount height for a natural cheek index.

• White Light: M-LOK-mounted light at 3/9 o’clock with a pressure pad for PID (positive identification).

• Sling: Two-point QD sling for stability in unconventional positions and easier carry.

• Magazines & Ammo: Use reputable 7.62×39 magazines; test a few loads for reliability and POI, then record your dope.

Ownership Tips

1. Zero Smart: Establish a 25–50 yd zero suited to short-barrel ballistics; verify at 100 yds.

2. Torque & Witness: Mount optics and M-LOK® accessories to spec; paint-pen witness marks simplify quick checks.

3. Maintenance Rhythm: Keep the BCG well-lubed during high round counts; periodically confirm muzzle-device timing and rail fasteners.

4. Train the Controls: Rehearse selector use, reloads, and light activation to exploit the PDX’s speed advantage.

Safety & Compliance

Know and follow all federal, state, and local laws regarding AR pistols, overall length, muzzle devices, and magazine capacity. Always verify the pistol is unloaded before maintenance or storage, and use proper eye/ear protection during live fire.

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Maxim Defense SPS 505 PDX — 7.62×39, 5.5" AR Pistol, Urban Gray, HATEBRAKE, ALG Combat Trigger, SCW Pistol System (MXM-50840 | 680017508401): a blast-managed, ultra-compact, mission-ready platform engineered for close-quarters control, fast deployment, and decisive performance.

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