Maxim Defense SPS 505 PDX — 7.62×39 AR Pistol, 5.5" Barrel, FDE (Arid), M-LOK® Handguard, HATEBRAKE™, ALG Combat Trigger, SCW Pistol System, 20+1 (MXM-50800 | MXM50800 | UPC 680017508005)

Compact size, battlefield pedigree. The Maxim Defense SPS 505 PDX is a purpose-built AR-pattern pistol chambered in 7.62×39, engineered for maximum performance in the smallest possible footprint. With a 5.5" barrel, rugged anodized Flat Dark Earth (Arid) finish, low-signature HATEBRAKE™ muzzle device, and the ultra-short SCW Pistol System, the PDX punches well above its size class. Add an ALG Combat Trigger for crisp control, an M-LOK® compatible handguard for mission accessories, and a 20-round magazine, and you have a private-security-grade tool designed for defense, vehicle deployment, and discreet carry-over platforms.

Why the SPS 505 PDX Leads the Short-Barrel Pack

• Serious Power, Minimal Length: The proven 7.62×39 cartridge delivers hard-hitting terminal performance out of a compact 5.5" tube—ideal for CQB and confined spaces.

• HATEBRAKE™ Muzzle Device: Maxim’s signature HATEBRAKE pushes blast and concussion forward, reducing side pressure and improving shooter comfort—especially in vehicles and indoors.

• SCW Pistol System: The ultra-short spring/receiver extension system collapses tight for easy storage and deployment, while preserving reliable cycling.

• ALG Combat Trigger: A clean, consistent trigger press supports faster, more accurate shot strings under time.

• M-LOK® Ready: Lightweight, rigid handguard offers modern mounting for lights, switches, handstops, and QD sling points without adding bulk.

• Duty-Focused Build: Anodized FDE (Arid) finish, robust controls, and Maxim Defense’s reputation for reliable SBR/PCC systems mean confidence on day one.

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, with HATEBRAKE™ blast-redirecting muzzle device

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

• Trigger: ALG Combat Trigger

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

• Receiver/Finish: Aluminum, anodized Flat Dark Earth (Arid)

• Brace/Extension: SCW Pistol System (compact receiver extension for ultra-short length of pull; pistol configuration)

• Safety: Manual safety selector

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

• Part Numbers: MXM-50800 / MXM50800

• UPC: 680017508005

Performance You’ll Notice

• Manageable Blast: The HATEBRAKE keeps pressure and flash pushed forward, preserving awareness and communication—crucial in home-defense and vehicle scenarios.

• Fast, Precise Control: The ALG Combat Trigger provides a predictable break and short reset to keep splits tight and hits consistent.

• Ultra-Compact Handling: The SCW Pistol System and short handguard make the PDX exceptionally maneuverable around doorways, hallways, and inside vehicles.

• Reliable Cycling: Maxim’s short-barrel tuning and robust gas/bolt interface help maintain function across quality 7.62×39 loads.

Ideal Use Cases

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

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

• Training & Range: Efficient platform for CQB drills, low-light work, and short-range carbine fundamentals.

• Ranch/Overland: Durable finish and dependable mechanics for daily carry-along utility.

Smart Setup Ideas (Non-Instructional)

• Optics: Pair with a closed-emitter red dot for maximum durability; confirm witness height with your preferred mount.

• White Light: M-LOK-mounted light at 3 or 9 o’clock with a pressure pad for positive ID.

• Sling: Two-point QD sling to stabilize unconventional shooting positions.

• Magazines & Ammo: Run quality 7.62×39 magazines; test several loads for reliability and POI, then build your dope card.

Ownership Tips

1. Zero & Confirm: Establish a 25–50-yard zero appropriate for short-barrel ballistics, then verify at 100.

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

3. Maintenance Rhythm: Keep the BCG well-lubed during high round counts; occasionally verify muzzle device timing and handguard fasteners.

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

Legal & Safety

Confirm and follow all federal, state, and local laws regarding AR pistols, overall length, muzzle devices, and magazine capacity. Always verify the firearm is unloaded before maintenance or storage and use proper eye/ear protection at the range.

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Maxim Defense SPS 505 PDX — 7.62×39, 5.5" AR Pistol, FDE (Arid), HATEBRAKE, ALG Combat Trigger, SCW Pistol System (MXM-50800 | 680017508005): a compact, blast-managed, mission-ready powerhouse engineered for close-quarters control, fast deployment, and decisive performance.

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