SKU: 56361535897

VSR Concave Bucking 40º (Black)

Sale price$9.89 Regular price$10.99
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

VSR Concave Bucking 40º (Black)Material: Silicone rubber Hardness: Shore A40 (black) Compatibility: VSR 10 chamber Only works with Airsoftphilosopher barrels. Recommended FPS: 200600 fps (equivalent to 0. 4 3. 3 joules) Perfect fit in the Airsoftphilosopher hop up window Having a high quality, properly cut inner barrel inside your airsoft replica is important, but even more important is their compatibility with each other. If the cut does not perfectly match the hop up window of

Material:

Silicone rubber

 

Hardness:

Shore A40 (black)

 

Compatibility:

VSR-10 chamber

Only works with Airsoftphilosopher barrels.

 

Recommended FPS:

200–600 fps (equivalent to 0.4 – 3.3 joules)

Perfect fit in the Airsoftphilosopher hop-up window

Having a high-quality, properly cut inner barrel inside your airsoft replica is important, but even more important is their compatibility with each other. If the cut does not perfectly match the hop-up window of the barrel, or if the chamber applies downward pressure in the wrong place, the hop-up bucking cannot reach its full potential.

That is why we carefully design our products to achieve the best possible results when used in the correct setup.

As shown in the image, the patch covers the entire length of the window, while still leaving a small gap so the patch can move up and down without tension. Even the barrel edges are chamfered for longer service life and sufficient space for downward movement.


Designed for Maximum Performance

The concave bucking is designed to reach the physical limits of accuracy and range. It provides a 6.6 mm long contact patch to perfectly guide the BB and apply precise backspin.

The best results are achieved with the Airsoftphilosopher VSR chamber or the Maxx Model AEG chamber with a concave nub.

Note: Most chambers are not designed for large hop-up windows and bridged barrels. Make sure that the hop-up arm and nub apply pressure in the correct position.


Perfect air seal

Each hop-up bucking has two main tasks:
Applying perfect hop and providing an air seal.

Therefore, the feeding lip of the Airsoftphilosopher concave bucking is tighter than other buckings to provide a perfect air seal. The special design reduces feeding issues.

Additional 3D printing on the exterior improves the tight fit inside the chamber.
(Each chamber has slightly different dimensions, so if the air seal is not optimal with your chamber, wrap one or two layers of Teflon tape around the outside.)

Specially developed material

The durable silicone rubber is designed to create perfect friction between the BB and the bucking. The large contact area of the patch allows you to use a very soft bucking that creates a perfect air seal and is still capable of lifting heavier BBs.

Due to the special compound, the silicone rubber has greater compression stability and reliably returns to its original position even after prolonged use.

 
Polished surface

Each bucking features a polished surface to provide maximum tolerance and consistency.

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 56361535897

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4.6 ★★★★★
Based on 22 reviews
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Becky Z.
Grantham, US
★★★★★ 5
Love these shelves!
Size: 48inch, Color: Light Walnut
These are incredible for the price! Feel & look like wood. Easy-ish to install - just take your time, measure twice & use a level. Very sturdy! Great hardware & instructions. Now my daughter wants some for her apt.
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Reviewed in the United States on February 22, 2025
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Amber Danielle Farmer-Sutherland
Alexandria, US
★★★★★ 5
Perfect!
Size: 24inch, Color: Walnut, Size: 24inch, Color: Walnut
Perfect! Just what I wanted. Sturdy, came with all the pieces, and very pretty wood.
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Reviewed in the United States on November 20, 2025
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Verified Purchase
KB
Belleville, US
★★★★★ 3
They worked for replacing shelves but I wouldn’t mount them on my wall
Size: 24inch, Color: Walnut
I specifically bought these shelves because of their dimensions. I have a built-in cabinet and when we moved in 6 or so years ago, the previous owners must have taken them with them when they moved. It’s been bothering me the whole time I’ve lived here and wanted to make some but just never found the time to get around to it. I measured them out and these floating shelves were perfect for the dimensions I needed to replace the missing shelves. Would I put these on my wall(s)? Absolutely not unless I corrected the mounting issues. One thing that really stuck out to me was how bad the design was for mounting these shelves. When I took them out of the packaging, the brackets were falling out of the back everywhere. This did not inspire too much confidence that if I hung them up, they would be stable. I’ve had a ton of floating shelves similar to this mounting design, but the arms that the boards slide into on the wall for this particular shelving are thin and flat (while being easily mailable with your hand alone) in comparison to every other one I’ve had being round, or at least decently thick, sometimes with additional screws that you can insert under the board and into the mounting arms for extra stability. Also, any time I’ve ever had to mount a similar floating shelf, it took some finesse and strength to release the mounting arms from the back of the shelf because they fit very snugly. The fact that the mounting brackets were falling out of the back means that they are not snug and prone to be very loose. Another thing that stuck out to me is that the shelves are hollow. Now, for my purposes, this is fine, but again, detracts significantly from the confidence that these would be stable if mounted on the wall and would most likely droop when weight was applied. I also took issue with the fact the boards had no protective covering and were jammed into a box, with the hardware pressing against one of the boards tightly. I just flipped the shelf over to mask the defect from packaging but the side I wanted to use because it had better coloring was the damaged side. Mine did not come with any mounting directions but some common sense would be all you needed to put up something so simple. However, it did not come with a template to mark the wall for spacing, which adds to the difficulty because you have to have precise DIY measurements to slide the boards onto the mounting arms correctly. To be honest, if I were to mount these, I would bypass the shoddy mounting provided and go with some heavy, durable brackets underneath. Overall, these shelves worked for my purposes but I can see how the reviews would be very mixed in terms of mounting and quality. I did get these on a limited time deal and they were priced at approximately $8 per shelf, which was a really good deal to get 4 shelves for that price in comparison to the “normal” price resulting in approximately $11/shelf. I wouldn’t have paid full price for these and would have been highly disappointed had I with the intention to mount them, especially since I would have needed to provide better and more stable mounting hardware. They are lesser quality than others within the same price range and I think you could do much better if your intention is to mount them.
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Reviewed in the United States on January 11, 2025
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Verified Purchase
Amazon Customer
Houston, US
★★★★★ 5
Would purchase again
Size: 48inch, Color: Light Walnut
I was not sure what to expect when I purchased these. I thought maybe they were going to be a fake particle board. But this was a solid wood. Easy to install, no directions were in the box. There was a few chips in the corner of the wood but overall I would purchase again.
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Reviewed in the United States on January 20, 2026
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Verified Purchase
SmartLady
Natrona Heights, US
★★★★★ 5
Would buy again and again
Color: Black, Size: 35.4 Inches
These are beautiful! I thought they’d be hard to install, but very straightforward and easy. They are quality and sturdy. I staggered the shelves and they hold a lot. Great value for the quality. I will be buying more for another room in the house.
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Reviewed in the United States on March 10, 2026

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