High Power Model Rocketry

Quantum Tube Payload Section

Quantum Tube Payload Section - Main image
Quantum Tube Payload Section - View 2
$7.67 $22.42 In stock

As of 1/1/2026, 2.560" and 3.900" sizes are discontinued.

Each payload section comes complete with:

  • 1-Payload tube
  • 1-Coupler tube
  • 1-Bulk plate
  • 1-Eye bolt
  • 1-Washer
  • 2-Nuts

The 2.1, 2.5, 3.0 and 3.9 PSK`s come standard with QT. All other sizes are phenolic. Phenolic PSKs are still available in the 2.1-3.9" sizes upon request.

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When it ships

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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If you need a refund

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Please contact us for the refund processing timeframe before returning an item.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Amelia ★★★★★

Had no trouble assembling this section for my L2 cert rocket—the bulk plate and eye bolt hardware made the install clean and fast. The 3.0 PSK fit snug without any sanding needed.

Violet ★★★★★

The coupler tube fit my bulk plate perfectly, so the whole assembly went together in about ten minutes with the included nuts and washer. Everything I needed was right in the box, which made this a pretty painless upgrade.

Amelia F. ★★★★★

The eye bolt and hardware kit saved me a trip to the hardware store, and the bulk plate fit snugly against the coupler tube. Really solid build for the price.