Dead Air Hub Deadair Sd502 Hub To P-series Adapter

The Dead Air SD502 HUB to P-Series Adapter for Suppressors lets you unlock full compatibility between your HUB-equipped suppressor and the expanding ecosystem of P-Series accessories. If you've invested in a modular suppressor platform—like Dead Air's Primal—this adapter bridges the gap, letting you swap between booster systems, 3-Lug mounts, Keymicro attachments, and fixed P-Series mounts without committing to a single configuration. It's the same adapter included with the Primal, proven to handle the thermal and pressure demands of rifle and pistol shooting.

Built from 4140 heat-treated alloy steel and finished in tough QPQ black nitride, the SD502 is engineered for durability in the field and at the range. The adapter is compact and lightweight—barely half an inch long and under an ounce—so it won't add unnecessary bulk or weight to your setup. Threading is precise: 1.375-24 on the outside (HUB side) and 1.125-28 on the inside (P-Series side), ensuring a solid, repeatable interface every time you swap accessories.

This is modular suppressor simplicity done right. Whether you're building a dedicated hunting rig, a multi-caliber range gun, or a pistol platform, the SD502 gives you the flexibility to match your suppressor to the task at hand. Always confirm your specific suppressor and caliber pairing before use.

Key Features

• Converts HUB silencers to accept P-Series adapters and accessories
• Enables compatibility with boosters, 3-Lug mounts, Keymicro, and fixed P-Series mounts
• 4140 heat-treated alloy steel with QPQ black nitride finish for corrosion and wear resistance
• Compact design: minimal length and weight penalty
• Precise 1.375-24 to 1.125-28 threading for reliable repeat mounting

Specifications

Frequently Asked Questions

What P-Series accessories does this adapter work with?

The SD502 accepts P-Series booster systems, 3-Lug mounts, Keymicro attachments, and P-Series fixed mounts. Verify that your specific accessory uses 1.125-28 P-Series threads.

Which suppressors use the HUB thread pattern?

Dead Air's HUB-equipped silencers like the Primal use the 1.375-24 HUB threading. Check your suppressor's documentation or markings to confirm it has HUB threads before ordering.

Is this the same adapter that comes with the Primal?

Yes—the SD502 is the same HUB-to-P-Series adapter included with Dead Air's Primal suppressor.

Do I need to worry about caliber compatibility?

The adapter itself is caliber-agnostic, but your suppressor and attached accessories must be rated for your specific caliber. Always verify that your HUB silencer and P-Series accessory are compatible with the round you're shooting.