Gauntlet Air Stripper redesign: Underway and being tested

[Hajimoto]

As most of you are aware, the Umarex Gauntlet is shipping with a poorly made injection molded air stripper that is cracked on most guns straight out of the box. I have been working on a more efficient design since I got my Gauntlet (My stripper was cracked too see photo below) and I think I finally have a design that snatches a high volume of air away from the pellet path and allows the pellet to soar like an eagle! (Or a really fast pidgeon  )


My Cracked Gauntlet Air Stripper...Boooo Hiisssssss

Notice the increased amount of exhaust ports.


Looking inside you can see the multiport exhaust chamber to create a low static condition forcing air to take the path of least resistance.


I design flutes above each port to allow air that hits the O-Ring to be directed towards the breech end of the shroud to be exhausted with the weep holes I have at that end.


A close up that shows the amount of design effort that went into the multiport channeling that needed to be sturdy enough to withstand repeated Gauntlet blasts.
This design is currently in heavy testing. I will share my results with you but I will say that I am very pleased with the performance so far.

https://player.vimeo.com/video/251755607

 

[knifemaker]

Nice!!!

Knife

 

[Matt247365]

Nicely done, Haji

Matt

 

[John "spysir" Blount]

What's the dia of the pellet exit hole?
Max flow to the rear is naturally best with the smallest bore hole one can get, .001 would be nice if doable - doesn't seem to likely when dealing with mass produced parts and drop in/on parts- and ALL the flow you can get to the rear. Different but most all mod/ldc's seem to have much to large an exit, even Beeman used to offer .177/.22/.25 on the 16mm break in the 80's.

ChrisK machined his from a chuck of (?) delon

I think the one section part inside the shroud helps with alignment also, ? .
TIGHT tolerances and an airstripper you cant quite see ( or that was a different model?) mayve swifts work?

This one inside a Vanquish shroud had a very close tolerance and totally changed the rifle.

Of course printing id different and I sure dont know what all can be done. I've seen several UK designs with printed mono-cores , one ( good idea or just an idea ) had spiral baffling running counter to the riffling - again tight tolerance to bore cal. - worked pretty well.

If nothing else, could a shroud support/stripper just be made much longer, with longer air slits even requiring cutting half the spring to fit inside the gauntlet ? More air to the rear is the way to go and if your making a replacement part anyway the more advantage the better. I personally would not fear cutting THAT spring ( even tho I don't like cutting valve springs & such personally).
Just a thought.
John

 

[ironlion269]

@hajimoto, incredible work you are doing! For my part, I eagerly await the day you release a video detailing the design and creation of your "Bride of Gauntlet". I figure it'll come out as "found footage" that leaks from the Airborne unit that ends up dropping into the mayhem caused by your creation. Think "Cloverfield", only shrouded.

 

[Hajimoto]

Your killing me! Thank you for the kind words IronLion269.

 

[Hajimoto]

"knifemaker"Nice!!!
Knife

Thanks Brother

 

[Hajimoto]

"Matt247365"Nicely done, Haji
Matt

Thank you kind sir

 

[Hajimoto]

"spysir"What's the dia of the pellet exit hole?
Max flow to the rear is naturally best with the smallest bore hole one can get, .001 would be nice if doable - doesn't seem to likely when dealing with mass produced parts and drop in/on parts- and ALL the flow you can get to the rear. Different but most all mod/ldc's seem to have much to large an exit, even Beeman used to offer .177/.22/.25 on the 16mm break in the 80's.
ChrisK machined his from a chuck of (?) delon

I think the one section part inside the shroud helps with alignment also, ? .
TIGHT tolerances and an airstripper you cant quite see ( or that was a different model?) mayve swifts work?

This one inside a Vanquish shroud had a very close tolerance and totally changed the rifle.

Of course printing id different and I sure dont know what all can be done. I've seen several UK designs with printed mono-cores , one ( good idea or just an idea ) had spiral baffling running counter to the riffling - again tight tolerance to bore cal. - worked pretty well.
If nothing else, could a shroud support/stripper just be made much longer, with longer air slits even requiring cutting half the spring to fit inside the gauntlet ? More air to the rear is the way to go and if your making a replacement part anyway the more advantage the better. I personally would not fear cutting THAT spring ( even tho I don't like cutting valve springs & such personally).
Just a thought.
John

Excellent food for though and I am replacing the spring with a shorter one so I can add more dampening. Love the variances in design and when I look at some of those all I see is class. Thanks for the collaboration.