Photo of STA Solvent Trap Product Image with 1/2x28 threading, used for AR15 / 22LR, fits common standards and beyond

D Sized – King Cobra Solid Adapter For Our Heavy Duty Knurled Tube | STA

D Sized – King Cobra Solid Adapter For Our Heavy Duty Knurled Tube: customer‑focused design for solvent capture and maintenance. Precision threads, durable build, USA support. Choose options above to configure your kit.

D Sized – King Cobra Solid Adapter For Our Heavy Duty Knurled Tube | STA

D Sized – King Cobra Solid Adapter For Our Heavy Duty Knurled Tube is a precision-machined STA accessory for lawful cleaning and solvent capture. This solid adapter mates our heavy duty knurled tube with the correct D-size interface to streamline maintenance and keep the bench clean.

Titanium D Size Thread Connector 1/2x28 solvent trap adapter — solvent trap adapter for AR-15 / .223 / 5.56, also common on .22LR. Image for solvent trap builds.
Solid King Cobra adapter for STA heavy duty knurled tube (D size).

Key Benefits

  • Precision fit: Correct D-size interface and tight tolerances for confident use.
  • Durable build: Quality materials/finishes selected for longevity in cleaning workflows.
  • Cleaner workflow: Helps contain solvent and keep parts organized during maintenance.
  • USA support: Quick answers and fast shipping from STA.

Specs

  • Part type: Solid adapter (accessory), not a full kit
  • Compatibility: STA heavy duty knurled tube (D size)
  • Finish: Knurled-tube interface
  • Material: Aluminum/steel (see options on product page)

How to Use

  1. Confirm D-size compatibility with your STA heavy duty knurled tube.
  2. Start threads by hand; snug only—do not overtighten.
  3. Perform standard bore/chamber cleaning and capture solvent responsibly.
  4. Drain, wipe dry, and store clean after use.

FAQs

Is this legal? STA markets adapters for solvent capture and cleaning. Any modification may be regulated (e.g., NFA). Review current rules before making changes.

Is it a full kit? No—this is the D Sized – King Cobra Solid Adapter For Our Heavy Duty Knurled Tube, sold as an accessory part only.

Will it fit my setup? It’s designed for the STA heavy duty knurled tube (D size). If unsure, contact STA support.

Helpful Links

Compliance note: Cleaning use only; this is not a sound-mitigating device. Follow all applicable laws.

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🚚 Delivery & Shipping

  • Fast dispatch: Ships from the USA in 1–2 business days.
  • Tracked orders: Tracking number emailed when your order leaves our warehouse.
  • Packed tight: Kits are securely packed to prevent movement and damage in transit.
  • Delivery window: Standard 3–7 business days (expedited options available at checkout).
  • International: Email us for rates and delivery estimates.

Note: Transit times may vary due to carrier delays, weather, or holidays.

Questions? Call (480) 687-0878 or info@SolventTrapsAmerica.com.

🔁 Exchanges

We handle exchanges on a case-by-case basis to make sure you get the right kit and parts for your needs. Please review the guidelines below and contact us to start an exchange.

How to Request an Exchange

  1. Email info@SolventTrapsAmerica.com with your
    order number, reason for exchange, and (if applicable) photos of the item received.
  2. Wait for an RMA (Return Merchandise Authorization) and instructions before sending anything back.
  3. Ship the item in secure packaging with all original components and paperwork.

Eligibility

  • Item must be unused, unmodified, and in original condition with all parts (tube, adapters, end cap, protectors, etc.).
  • Custom or special-finish items (e.g., certain hydro-dipped or Cerakote runs) may be non-exchangeable unless defective on arrival.
  • Requests should be made promptly upon delivery. Items showing signs of use, installation, or alteration are not eligible.

Defects, Wrong Item, or Transit Damage

  • Wrong item received: Contact us immediately with photos—we’ll make it right.
  • Transit damage: Keep all packaging and provide photos of the box and item so we can file a carrier claim and arrange a replacement.
  • Manufacturing defect (DOA): Report promptly with photos/video; we’ll review and advise next steps.

Costs & Restocking

  • Customer is responsible for return shipping unless we shipped the wrong item or a verified DOA/defect.
  • Exchanges may be subject to a restocking fee per our policy. Authorized returns (if approved instead of exchange) may incur a 30% restocking fee.

Important Notes

  • No modifications or alterations are permitted. Modified items are not eligible for exchange.
  • Exchanges are not guaranteed; approvals are based on item condition, availability, and policy compliance.
  • All products are sold as solvent trap cleaning components only. Any suppressor-related modification requires an approved ATF Form 1.

Contact

Questions or to start an exchange:

Email: info@SolventTrapsAmerica.com

Phone Order Hotline: (480) 687-0878 (M-W-F, 8am–Noon)

Solvent Traps America • Chandler, AZ 85225

Policy summary: Exchanges considered case-by-case. Authorized returns may incur a 30% restocking fee. Orders can be canceled only prior to payment processing. Terms subject to change.