Kits, Individuals, Lubes
Buna-N (Nitrile) Viton, Silicone ,Teflon
For sale are (4) Buna O-Rings for Benjamin Marauder - Bstaley O-Ring Tune
By completing this tune, you will have a better and more consistent shot string.
This has been shown to greatly improve your over-all accuracy rate.
You will receive a set of 4 O-Rings to complete this tune.
4 O-Rings and free shipping! One more than other auctions here!
So What is the Bstaley Tune and O-Ring Mod?
It is DIY. It takes three o-rings, put in between hammer and valve. For a given amount of hammer energy required to open the valve at high pressure, it will open further and
longer at lower pressure. The staley mod clips the top off that peak, and conserves air so the flatter string can continue. It isn't in action for first third to quarter of the string. For
a 25 cal, tuning for ~850 FPS, put the hammer travel at ~4 turns CW from max-CCW. For a 22 cal, it is around 3.5 CW from max. Then adjust preload to deliver FPS at the top
of the fill. If it is too fast at lower pressure, turn travel screw CCW a wee bit. If is on the money at low pressure, and slow at high pressure, increase preload.
Here is Bstaley's link to the O Ring Mod Click HERE
Here is another video on how to complete the mod Click HERE
Shipping via USPS First Class is included in the price.
I use 1st class mail. Tracking IS NOT provided with 1st class.
TRACKING is only provided on UPS, Express Mail and Priority Mail shipments.
If your item shows shipped - I don't know when it will arrives. You can find all your shipping info on your 'My Ebay' page or on the auction page.
All sets will be shipped the next business day after payment.
Need A Kit Not Listed? Just ask via email me at professorfoam (at) gmail com.
We can duplicate just about any kit.
Send us a sample kit, we'll make it, then we'll return your kit and some FREE kits for your trouble.
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