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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
Hi Capa 5.1 Threaded Outer Barrel with TDCHi CAPA 5. 1 TDC Threaded Outer Barrel Hop up adjustments at the Top Dead Center (TDC) without removing the slide. Adds 14mm CCW threading at the muzzle. Manufactured from lightweight, high precision CNC machined aluminum. CNC aluminum outer barrel compatible with the Tokyo Marui Hi CAPA 5. 1 gas blowback pistol. Allows hop up adjustments via a screw on the top without disassembling the slide. Hop up pressure is applied from the top center of the
Hi-CAPA 5.1 TDC Threaded Outer Barrel
- Hop-up adjustments at the Top Dead Center (TDC) without removing the slide.
- Adds 14mm CCW threading at the muzzle.
- Manufactured from lightweight, high-precision CNC machined aluminum.
CNC aluminum outer barrel compatible with the Tokyo Marui Hi-CAPA 5.1 gas blowback pistol. Allows hop-up adjustments via a screw on the top without disassembling the slide. Hop-up pressure is applied from the top center of the chamber, providing more stable hop-up performance compared to conventional hop-up units. The combination of a rigid aluminum alloy construction and a non-tilting design enables more consistent and accurate shots. The barrel tip features 14mm CCW threading, compatible with various muzzle accessories. The mounting method has been improved to minimize outer barrel misalignment.
Brand: Nine Ball
Compatibility: Tokyo Marui Gas Pistol ・ Hi-CAPA 5.1 Government Model
Available Colors: Selectable color variants available.
Caution:
- If the hex screw protrudes from the surface of the outer barrel, it may interfere with the slide and damage the airsoft replica.
- Excessive hop-up application may cause BBs to jam inside the chamber and damage the airsoft replica.
- This product is manufactured with tighter tolerances to reduce play between parts. Ensure there are no defects, debris, or dust inside the inner barrel.
- This product will always remain in contact with the recoil plug, so we recommend applying lubricant, such as our silicone spray, at the contact point.
- Do not overtighten. We recommend using threadlocker adhesive.
- This product is a custom airsoft part designed for use in airsoft toy replicas for ages 18 and over.
- This custom parts series requires disassembly and reassembly of the compatible airsoft toy replica. Under no circumstances shall LayLax be responsible for damage or accidents related to the installation of these parts. If you are unsure about the installation process, please consult the retailer where you purchased the item.
- We will not be responsible for damage caused by improper handling or incorrect installation of the product.
- The product may have sharp edges or burrs. Handle with care, as we will not be responsible for any injuries related to handling the product.
- Our products are optimized for use with Tokyo Marui and other LayLax products. Combining our products with third-party items may reduce performance or cause damage
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 1934 reviews
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Product Reviews
★★★★★ 5
Perfect applicators tool
Tool worked great. Bonds sound proofing to metal perfectly.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Must have
These things a freaking AWESOME!
If you're doing a big sound deadner job, you need thees! The 3 different sizes are perfect for the different shapes in the floor pans. Well built, good quality and they have a nice weight to them. Just buy them and thank me later. For $15.00 you can't go wrong.
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Reviewed in the United States on March 12, 2026
★★★★★ 5
Bringing a 1976 MG Midget to the modern world!
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
I've been restoring a 1976 MG Midget barn find. I bought some Sinless liner to help make the car rattle less and feel more solid.
This product is easy to cut, easy to install, and extremely sticky. I used it to line the trunk, the interior, and even some under the hood of the old MG. The adhesive stands up to the brutal temperature of the engine bay, and when (by accident) some fuel spilled onto the foam, it didn't fall apart or turn to mush.
Thanks to Siless, the MG now feels like a modern car. The floor pans feel much more solid, the doors make a heftier thud when you close them, and the trunk no longer sounds like a percussion instrument when you touch it.
If you know what you're doing, this product will transform the feel of a car. I found that 36 sq ft was enough for my MG Midget, but for a bigger car I would want more. The pattern on the back helped me to cut perfectly measured squares and rectangles. The foam itself doesn't have a strong odor, it works super well, and has held up to several months of changing temperatures (in the Midwest US.)
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Reviewed in the United States on November 11, 2025
★★★★★ 5
Excellent Car Sound Deadening and Heat Insulation Solution
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
If you're looking for a high-quality car sound deadening and heat insulation material, then the Siless Liner 157 (4 mm) mil 36 sqft is definitely worth considering. This product is designed to offer superior noise reduction and heat insulation for your car, making your driving experience more comfortable and enjoyable.
The closed-cell foam material used in this product is of premium quality, and it effectively blocks out external noise and vibrations. This means you can enjoy a quieter and more peaceful ride, even on noisy roads. In addition, the Siless Liner 157 also provides excellent heat insulation, which can help keep your car cooler in hot weather.
One of the best things about this product is that it's very easy to install. You don't need any special tools or equipment, and the material can be easily cut to fit any shape or size. It's also very lightweight and flexible, which makes it easy to work with.
Overall, the Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat is an excellent choice for anyone looking to improve the comfort and performance of their car. It's a high-quality product that delivers on its promises, and it's definitely worth the investment.
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Reviewed in the United States on March 12, 2023
★★★★★ 4
Heavy-Duty That Works!
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
This extreme sound deadening mat performs well for reducing road noise and vibration. It feels dense and adheres securely when properly applied. Once installed, it noticeably improves interior quietness.
Overall, it’s a strong choice for more serious sound insulation projects.
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Reviewed in the United States on May 12, 2026