Theoben Rapid Forum

Everything Technical About Rapid => Technical => Topic started by: ColinH on October 27, 2025, 06:02:33 PM

Title: Theoben Rapid 7 Silencer with Vortex End Cap Effectiveness ?
Post by: ColinH on October 27, 2025, 06:02:33 PM
Hi All, I have a Rapid Mk1 sub 12 ft.lb with the Theoben silencer with vortex end cap and have some questions on its sound deadening effectiveness please.

Firstly, is it a good silencer and does the vortex end cap actually do anything to further reduce noise levels?

Secondarily are there better moderators that people have found and if so which ones?

Thanks, C/

   
Title: Re: Theoben Rapid 7 Silencer with Vortex End Cap Effectiveness ?
Post by: Ca_Varminter on October 27, 2025, 06:46:35 PM
Well Let's just say.... they are better than Nothing....
But since you have access to KevG..
I hear(no pun intended) his Carbon Fiber Mods he make are Excellent...

Good Luck,
Stuart
Title: Re: Theoben Rapid 7 Silencer with Vortex End Cap Effectiveness ?
Post by: Brooksy on October 27, 2025, 07:17:30 PM
The Theoben silencer is just about adequate, the Vortex end cap didn't make much difference to mine. My own custom baffles made it much better, but, a custom made silencer I developed with the help of Bucketboy was simply stunning. Kev G makes them just as good, so, go with him.
Title: Re: Theoben Rapid 7 Silencer with Vortex End Cap Effectiveness ?
Post by: ColinH on October 27, 2025, 07:32:34 PM
Thanks Stuart and Brooksey for the replies.
So basically the Theoben silencer is "adequate and can be improved on. But how noticable an improvement?

Would it be 10%, 30% or perhaps maybe 50% .

C
Title: Re: Theoben Rapid 7 Silencer with Vortex End Cap Effectiveness ?
Post by: rapidave on October 28, 2025, 03:18:57 PM
Yes Kev G silencers are very good have just received the one Kev made me for .177
but sorry to say that he's not feeling to well sounded like he had flu about him
when I spoke to Kev this morning
Title: Re: Theoben Rapid 7 Silencer with Vortex End Cap Effectiveness ?
Post by: Kernal on October 28, 2025, 06:21:46 PM
Quote from: rapidave on October 28, 2025, 03:18:57 PMYes Kev G silencers are very good have just received the one Kev made me for .177
but sorry to say that he's not feeling to well sounded like he had flu about him
when I spoke to Kev this morning


Lets hope KevG gets well soon!
Title: Re: Theoben Rapid 7 Silencer with Vortex End Cap Effectiveness ?
Post by: Ca_Varminter on October 28, 2025, 07:48:06 PM
Quote from: Kernal on October 28, 2025, 06:21:46 PMLets hope KevG gets well soon!

He should recover quickly....
He has the Rabid Zombie Fox as a Nurse!!!!
Watching over him!!
(https://photos.imageevent.com/scl_electronics/misc/mages/RABID%20FOX.gif)
Stuart
Title: Re: Theoben Rapid 7 Silencer with Vortex End Cap Effectiveness ?
Post by: angrybear on October 29, 2025, 01:27:29 PM
Quote from: ColinH on October 27, 2025, 07:32:34 PMThanks Stuart and Brooksey for the replies.
So basically the Theoben silencer is "adequate and can be improved on. But how noticable an improvement?

Would it be 10%, 30% or perhaps maybe 50% .

C
Peoples ears are different, how a mod sounds to you will be different to how it sounds to me, in the same way that different eyes like different scopes  ;)
All down to how we each detect different frequencies, so giving a % is virtually impossible.
Title: Re: Theoben Rapid 7 Silencer with Vortex End Cap Effectiveness ?
Post by: Brooksy on October 29, 2025, 05:23:06 PM
Quote from: ColinH on October 27, 2025, 07:32:34 PMThanks Stuart and Brooksey for the replies.
So basically the Theoben silencer is "adequate and can be improved on. But how noticable an improvement?

Would it be 10%, 30% or perhaps maybe 50% .

C
Changing the baffles in the original Theoben can give a noticeable improvement, I'd guess at 30%.
Building a custom silencer, like I did, with five chambers of varying length, and baffle plate holes as close to the pellet diameter as you dare go, gave a massive improvement. I showed my cousin, an experienced shooter, he thought there was no air in the gun.
Title: Re: Theoben Rapid 7 Silencer with Vortex End Cap Effectiveness ?
Post by: Ca_Varminter on October 29, 2025, 05:46:13 PM
Quote from: Brooksy on October 29, 2025, 05:23:06 PMChanging the baffles in the original Theoben can give a noticeable improvement, I'd guess at 30%.
Building a custom silencer, like I did, with five chambers of varying length, and baffle plate holes as close to the pellet diameter as you dare go, gave a massive improvement. I showed my cousin, an experienced shooter, he thought there was no air in the gun.
Here you go...UK-Neil's baffle design for the Theoben Moderator Tube.....
(https://photos.imageevent.com/scl_electronics/gun/air/websize/NEIL%20DESIGN.jpg)

Stuart
Title: Re: Theoben Rapid 7 Silencer with Vortex End Cap Effectiveness ?
Post by: DB.20 on October 29, 2025, 09:05:54 PM
Yes, get well soon, KevG hope the ailment passes quickly. Nurse Zombie Rabid Fox may now have a dose of the flu to go with the rabies!
Title: Re: Theoben Rapid 7 Silencer with Vortex End Cap Effectiveness ?
Post by: ColinH on October 29, 2025, 09:15:54 PM
Thanks all for the replies, a complex subject but Iam more educated on the fundamentals of moderators now
C/
Title: Re: Theoben Rapid 7 Silencer with Vortex End Cap Effectiveness ?
Post by: Treemonkey on December 21, 2025, 01:43:06 PM
How do you get the baffles out?

I didn't want to force anything. I could get the vortex cap off but not the barrel end.
Title: Re: Theoben Rapid 7 Silencer with Vortex End Cap Effectiveness ?
Post by: Ca_Varminter on December 21, 2025, 03:37:22 PM
Take off the Endcap,
Point the muzzle towards a pile of rags...
Fire it a couple time(no PELLET)
The Plastic baffles should just pop out!

Stuart
Title: Re: Theoben Rapid 7 Silencer with Vortex End Cap Effectiveness ?
Post by: Treemonkey on December 21, 2025, 05:55:37 PM
Cheers, I'll give that a go.