Atchisson Assault Shotgun (AA-12)

About: K'NEX gun builder here at Instructables. More or less retired from the community, but I still pop in now and again.
Hey guys. This is (obviously) my K'NEX Atchisson Assault Shotgun (AA-12). This gun has been attempted at once or twice by other K'NEXers, like Seleziona, but has never really been done. So today I bring you mine. I am not going to say that it is so much better than Seleziona, because that is for others to decide, but I want to offer this for you guys as an alternative. =D

This gun, first off, is fantastic. It shoots probably 60 ft. (slugs, not shotgun shells), feels great, and is nice and hefty. It has some similarities to Seleziona's AA-12 (see here) but mine is mostly out of my head. Mine is quite a bit more accurate than his was, considering he had no fake barrel, his sights were..weird, and his had no trigger guard (which is something I have noticed in many of his guns). But, anyhoo, lets move on to pros and cons...

Seleziona: AA-12
BlackShadow12: SWAT 556 (his drum mag)

Good range: 60 ft.
Great looks (just compare it with the pics of the real thing)
Nice 'n hefty
Has fake barrel
Sights work nicely but...
Gun is comfortable to hold
Has fake CH (Charging Handle)
Handle is comfortable
Has GREAT details, like the bump on the trigger guard, and has triangular-like handle guard
About the right length
Has drum mag

Sights are not entirely right
Charging handle could be better
Drum mag is not tilted...

All and all this gun is pretty cool (IMO), so tell me what you think. =D

-The Red Book of Westmarch



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    83 Discussions


    2 years ago

    but amazing job on it, its awesome

    So it really stinks cuz i have a few thoughts of how i can make a pump action spas 12 with realistic mag D: If i had one id post a few pics of my ideas.

    Hi, here are the pictures of my AA-12. I think i built everything right and it shoots pretty far, not tested ranges yet, sorry for the rubbish quality of the photos, as I do not have a decent camera. Tell me what you think, thanks again.

    1 reply

    6 years ago on Introduction

    Very nice! Wish it had a real drum mag but it works fine. The intro pic reminds me a lot of the background I use sometimes.

    2 replies

    No prob. Since you made this, what do you think of the chances of a triple barrel shotgun? They're marketing one on the cover of Home Defence magazine (If I remeber right...)