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 Aug 2 - Aug 7

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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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Regal Mom
Waukegan, US
★★★★★ 4
XL sized suit review
Color: Light Blue, Size: X-Large
I ordered XL for my husband who is 6'1" and weighs 200 lbs. The pants' length was too long and we had to cut off two inches and get them hemmed. Jacket could be a little bigger in the mid section and shoulders but vest fit well. Could do without the fake handkerchief in the suit jacket pocket. Still liked the style and the color of the light blue suit.
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Reviewed in the United States on June 1, 2026
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jessica vasquez
Pawtucket, US
★★★★★ 5
Perfect for teens
Color: Black, Size: XX-Large
Great suit! Great quality for the price. Very impressed. Bought for my teens. Didn't want to spend a lot on something they won't wear more than a couple times before they grow again. This suit is great. A tad long in the arms and legs. But overall, its perfect. Fitting suit, but got a size larger for their comfort. Surprised at the quality, my mom was impressed and she knows suits.
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Reviewed in the United States on March 29, 2026
K
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Katherine
Port Orchard, US
★★★★★ 5
Great suit!
Color: Black, Size: Medium
Looks super nice! For the price, it is definitely worth it. The fabric looks and feels great and the size range is good.
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Reviewed in the United States on May 9, 2026
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Kia
Phoenix, US
★★★★★ 5
​Perfect for a wedding! Everyone loved it
Color: Deep Blue, Size: XX-Large
​I bought this suit set for our wedding and it was a huge hit everyone loved how it looked! The slim fit is perfect and looks very sharp and modern. The material is great quality and it comes with everything you need, making it an incredible value. My kids got compliments all night!
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Reviewed in the United States on May 20, 2026
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S Perez
San Leandro, US
★★★★★ 5
Great quality
Color: Black, Size: X-Small
Fit my son perfect. Ordered XS he’s 5’5” 128 lbs. pants fit great, they weren’t too big or too long. He felt comfortable and got many complements. Tie color comes random not black like the picture.
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Reviewed in the United States on May 19, 2026

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