Mark 4 gun pod with single barrel

[+ravenclaw_007]

i was on the search for info material on the Mark 4 mod 0 gun pod and found a picture showing the Mark 4 mod 0 with 2 barrels and an other Mark 4 with just one barrel , i searched but could not find any info on that single barrel pod , may be i t was just  a test that never pushed true

any info is highly appreciated

this is the Mark 4 mod 0 gun pod

and this are the picture showing 2 Mark 4 pods the one with 2 barrels and the other one with just one , the Mark 4 mod 0 is the one on the lower right and it is missing the tail section

the only difference between this 2 gun pods are the muzzle , the one for 2 barrels the other for 1

 

 

 

[MigBuster]

So you want know whether the single barrel type was ever used operationally?

 

 

[+ravenclaw_007]

exactly and what was the name for it 

this is an enlarged cut out from the last picture above , unfortunately on the single barrel pod is no lettering any more it was painted over on the left and on the right side

Edited March 27, 2021 by ravenclaw_007

[+Erik]

The Mark 4 Mod. 0 HIPEG 20mm gun was the USN version of the USAF SUU-16 / SUU-23. It wasn't used very often in the Vietnam War with the exception of the VAL-4 "Black Ponies" squadron they liked and regularly outfitted it for use on their OV-10 Broncos. The USMC later put the Mark 4 on A-4 Skyhawks, A-6 Intruders, and F-4 Phantoms for close air support. There is also a modified version with different fairings and spent shell chute that was found on the H-34 helicopter.

The Mark 4 Mod. 0 (MN 10121a) 

The GPU-2/A.

This may help: https://en.wikipedia.org/wiki/List_of_U.S._aircraft_gun_pods