Noveske switchblock

[ericf]

I can't say why one designer/builder ended up with one design over another, and I'm not an engineer / designer / nor gunsmith.
With that out of the way, in viewing pictures of the switchblock, and understanding what it does, and that it will need to be "tuned" to a suppressor, why didnt it have an adjustable blow off port (ala FAL) built in?
Seems like a simple idea that was missed.(maybe not)
I'm sure there are reasons that aren't obvious. Just thought I'd ask. It even resembles the FAL gas block sans adjustment.
I May not receive a definitive answer.
Just inquiring about an observation

 

[vinsonr]

Re: Noveske switchblock

An adjustable part is another part that can fail. Limiting the switch block to 'full gas' or some 'partial gas' keeps it simple and reliable. I have one on a 12.5" Crusader and it is markedly nicer to shoot on the suppressed setting when I have the can on it.

It won't cycle the bolt with the ammo I shoot when on the suppressed setting but without the can on it.

 

[A10XRIFLE]

Re: Noveske switchblock

It has to be tuned becouse every suppressor has different backpressure, if all cans were equal then the switch block could be made to work without tuning, but thats not the case.

 

[ericf]

Re: Noveske switchblock

I understand that it needs to be "tuned" to the rifle and suppressor combination.
My question was more towards "why couldn't it be "user" tunable?"
Instead of the three position adjustment, make it a threaded infinitely adjustable control knob. All the way in, Off. all the way out, Full open.
Wide open for light target handloads, then standard loads, then suppressed, then open a little for subsonic. Where ever it functioned best with the desired cartridge it could be set.
More of a design engineering question of the block than about tuning.
I guess this question should be asked of Noveske more so than here.

 

[vinsonr]

Re: Noveske switchblock

The switchblock works fine on my 12.5 and 18" AR's, and there is no tuning to do. If you want that kind of adjustability then get a JP Enterprises gas block.

 

[ericf]

Re: Noveske switchblock

just received my answer::

There are adjustable gas blocks of that design available.

The Noveske Switchblock does not require the user to:
Know how to tune a rifle for reliable operation.
Have the tools to test a rifle for reliable cyclic rate.
Remember the number of turns on a screw for each setting.
Worry that the adjustment screw will change during use.




Todd Krawczyk
Noveske Rifleworks LLC

 

[Mo_Zam_Beek]

Re: Noveske switchblock

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: A10XRIFLE</div><div class="ubbcode-body">It has to be tuned becouse every suppressor has different backpressure, if all cans were equal then the switch block could be made to work without tuning, but thats not the case. </div></div>


George are you saying based on your experience you have felt the need to tune them? How exactly did you do it? Manipulate the port? Or manipulate the the unit itself? Was this related to adapting a 5.56 unit to 7.62, or are you saying you felt the need to tune a 5.56 unit for a 5.56 gun for a specific suppressor?


They are right up the road from me, I have never heard them say it needed to be tuned; I have never heard of an owner that said it needed to be tuned. As of a couple years ago I was the only person to their knowledge that had ever broken a factory unit. I ran it up to them, they fixed it in 24 hours and I took it to a class the next day. That was a few thousand rounds ago. No issues since.



Good luck