Color
- Matte black tactical
Material
- High-tech technical elastomer
Resistance
- More than 300% stretching capacity
Dimensions
- Designed to fit on Excalibur ball shaped holder: S5 and R.E.D.S. (does not fit on 3/8 inch rod)
Total weight
- 737 grains (1.68 ounce)
QUANTITY
- 2 per package
dBKiller limb silencers and dBKiller bumpers (ABB technology) give you a much more silent shooting and hunting experience with your Excalibur crossbow ! These products are entirely developed and manufactured in North America and are patents pending.
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Vibrations and noise killer
dBKiller significantly reduces vibrations and noise of limbs and string. The dBKiller Bumper shock suppressor protects the limbs against self-destruction caused by violent oscillations during shooting. The string oscillation is immediately stopped when the arrow leaves the crossbow barrel, thanks to the shock suppressor Bumper. dBKiller Bumpers are the only shock suppressors on the market equipped with dBKiller noise-reducing counter-lever arms and ABB technology on the same unit.
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Highly-resistant elastomer design
dBKillers are made with high-tech technical elastomer, so they can stretch up to 300% and always return to their original form. They are efficient no matter the temperature outside and are simply INDESTRUCTIBLE.
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Improved durability of limbs and strings
dBKiller Bumper highly protects the crossbow’s string and limbs as well because it stops the string as soon the arrow leaves the barrel of the crossbow. The string thus suffers less stretching stress. It is the only shock suppressor on the market equipped with an air chamber (ABB technology) that absorbs the brutal collision of the string (like a car’s airbag).
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No significant effects on speed
dBKiller Bumper increases the speed of the arrow by 2 to 3 feet/sec., while dBKiller limb silencers do not affect speed. Note that there is no need to add silencers on the crossbow string as they decrease the speed of the arrow. As another benefit, the point of impact is not affected after the installation.
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Air Bag Bumper (ABB) technology
This technology improves durability of dBKiller Bumpers. The reason why dBKiller Bumpers are so tough is because they have a sealed air chamber. This chamber acts like a car airbag. The air chamber never leaks because the sealed chamber after installation is like a car tire mounted on a steel rim. If airbags save lives in car crashes, it saves the life of your crossbow limbs and also extends the life of your crossbow string. Absolutely no bumper on the market has these patents pending technology. ABB technology is unbeatable !
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How can I be sure that dBKiller Bumper will last ?
I am so confident of my dBKiller’s Bumper toughness that DrStirrup is the only one on the market offering a 2 year-warranty. Nothing is simpler : If the dBKiller does not last 2 years, DrStirrup will replace it, free of charge. No other manufacturer dares to do the same.
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Do dBKiller Bumpers reduce arrow speed ?
Each product has its own influence on speed. For example, dBKiller Bumpers (ABB technology), correctly installed according to instructions, increase the speed by a few feet per second. As for dBKiller limb silencers, if properly installed, there will be no significant loss of speed. For example, when adding a dBKiller kit on my Excalibur Matrix 380 crossbow limbs, I only lost 1 foot/second of speed ! This loss of speed is so minimal that scope adjustment was not necessary : the point of impact remained unchanged.
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Will DrStirrup produce dBKiller to install on strings of bows and crossbows ?
I do not intend to market such a product; any accessory attached to the string leads to a significant loss of speed, which is not acceptable in my point of view.
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What can I do to eliminate the sound of “guitar strings” when shooting ?
I have a whole other approach for eliminating string noise. The main reason the string makes noise is that when the arrow is discharged during the shot, the string continues its movement and swings strongly back and forth several times before it finally stops moving. These numerous movements also reflect on the limbs, making them suffer from incredible vibratory oscillations. All these movements generate noise and vibrations, and the only way to eliminate this problem, in my opinion, is by installing dBKiller on the limbs and more importantly, dBKiller Bumpers to stop the string movement as soon as the arrow leaves the crossbow barrel.
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There are a lot of string bumpers on the market. Why could the dBKiller Bumper (ABB technology) be better than others ?
I always found it inconceivable that manufacturers require leaving about ¼ of an inch between the string at rest and the bumper ! This gap lets the string and the limbs freely vibrate after the shot, which generates unwanted noise and vibrations. A less resistant shock suppressor will eventually crack from the brutal impact of the crossbow string.
In comparison with other stoppers, the dBKiller Bumper can be installed with the string touching the front end of the bumper at rest or during a shot, thanks to highly resistant materials and the absorption effect of the air collection chamber (ABB Technology). With the ABB Technology, the rebound of the string is eliminated and vibrations of the limbs are greatly reduced following the shot.
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What makes dBKillers so resistant ?
The cutting-edge technology elastomer used to design dBKiller silencers and shock suppressors is incredibly resistant ! They are almost INDESTRUCTIBLE. This is why DrStirrup offers a 2-year replacement warranty on the whole dBKiller product line. The other factor making the dBKiller Bumper so resistant is the air collection chamber inside the bumper, which acts like a car airbag in the event of a collision; it absorbs a huge part of the impact. This patents pending technology plays an important role in prolonging the bumpers lifetime since it gradually absorbs the very brutal end of the string’s run.
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