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Putting some clues together...

By The Armorer on November 3, 2011 | | Comments (25)
Specifically the very first clue with the most recent clue. From this view, Og should start to feel some confidence in his instincts - which we will confirm with the second pic... and at the same time, answer Og's question from yesterday... "Is it a firearm?"
whatziss_15_5.jpg

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25 Comments

By BillT on November 3, 2011 8:48 AM
I'd be inclined to opt for "part of a firearm," but I'll hedge because you sneakily removed the cat hairs...
 
By og on November 3, 2011 8:53 AM
Nicely done. It is precisely as I suspected but the strip of metal part threw me off. Now I know what it is, I'll r4ecuse myself so as to drag it out as long as possible.
 
By Quartermaster on November 3, 2011 9:01 AM
 It is indeed part of a firearm. From the recess in teh bolt I'd say 7.62. The only weapons I know in that chambering, with roller lock, is the G-3/CETME, and the MG-3. It could be MG-42 as the bolt for 8mm would be indistinguishable from recess size alone in a pic like that.

I've never see the bolt and carrier for the Stg 44, so I'm guessing it could be that, but that is sheer speculation on my part.
 
By Eagle1 on November 3, 2011 9:27 AM
It's a recoil mechanism for people watching the evening news.
 
By John of Argghhh! on November 3, 2011 9:32 AM
Eagle1 - *that's* a unique look at it!
 
By john on November 3, 2011 10:20 AM
it is not the bolt of a Stg-44
it used a gas piston not a delayed roller cam
the spainish after the war (with german enginers) developed a assualt rifle with rolloer cam.
did they make a sub-machine gun with this type bolt?
looks about the same size.
 
By PrimEvil on November 3, 2011 11:03 AM
I'll have to back off from my comment yesterday. Some exploded-view research showed it is definitely not an H&K component. It is also not anything from the MG42.   From what's there, I will hazard a guess on cycle-of-function. This is a fully automatic mechanism. If the parts are oriented in the photo as they are in the gun, it is a top-feed, bottom eject. The guide rod of the return spring for the third (rearmost) block functions as the ejector. The third block also carries the striker, and it's return spring is also the striker spring.   That wavy plate which was the first-off on this whatsis seems to say "feed-guide, for a top-feed push-through belt system". Or maybe it's just the mushroom soup I had last night talking.
 
By John of Argghhh! on November 3, 2011 11:07 AM
Small technical correction to PrimEvil's analysis - the "wavy plate" did *not* open this whatziss.  This did.
 
By Pogue on November 3, 2011 12:03 PM
I'm baffled - it looks like it's recoil/inertia  operated with roller block lock up, but that little wimpy inertia spring (the top one) doesn't imply much energy, and the welds on the rail system look to be pretty light weight as well. I'm leaning towards a subcaliber training device.  For what is a mystery, but since it's center fire how about something weird like .30 Luger for a MG42?  Oh, go ahead and ridicule me...  I'm trying to think outside the box here...  :-)
 
By Sigivald on November 3, 2011 12:38 PM
I had to resort to images searches, but I got it.

It's a Calico M960 (or family, at least) bolt.

(The key was realizing it might be roller DELAYED , not roller LOCKED.)
 
By Slick on November 3, 2011 2:02 PM
Looks like we have a winner!   Careful with the model specificity tho.  This blogmeiseter is crafty.
 
By John of Argghhh! on November 3, 2011 2:24 PM
Oh - Biiiiillllllll?  There's a cat hair in each pic...

Slick gets points for sucking-up.
 
By AW1 Tim on November 3, 2011 2:47 PM
Huh...

  So I guess it ain't a nail gun then.......  sigh.
 
By Quartermaster on November 3, 2011 3:08 PM
 Most of the peeps I talk with amout personal weapons refer to the G-3 as roller locked. If I remember "Small Arms of The World" it referred to the G-3 as roller delayed. Personally I'm having to guess as it has been many a year since I've seen a G-3 torn down (mid 70s) and may well be misremembering.

I'll come to Bill's defense. I didn't see any cat hair.
 
By John of Argghhh! on November 3, 2011 3:33 PM
QM - you and Bill are hopeless.  How much did you spend on the vision portion of that flight physical, Tuttle?
 
By J.M. Heinrichs on November 3, 2011 5:07 PM
 Jane's Infantry Weapons says "roller locking"; Ian Hogg's "Military Small Arms" refers to "locking rollers".

Cheers
 
By heatha on November 3, 2011 5:16 PM

bolt, with what appears to be the ejector facing down.  Only firearm I know, though there are probably more, is the P90.

Heath

Arte et Marte
 

 
By heatha on November 3, 2011 5:31 PM
Would a Calico Cat hair be out of place? (Yeah there is more than one downwards ejecting weapon in the world)

Heath

Arte et Marte
 
By Quartermaster on November 3, 2011 6:43 PM
 Bill, I think we got him stirred up. I think I'll lay off now. It's bad for his blood pressure and he is getting up in years.

Once more rising to the occasion on behalf of Bill, he isn't an Auburn grad.
 
By PrimEvil on November 3, 2011 6:45 PM
Durnit, John, I missed that little fiddly bit. But with it all together, it is the rear block in the assembly. Sans striker. Shot down in flames again. Which means the striker must be in the second block welded to the carrier, or the bolt itself. Hmmmmmm.....does that make the last block the "hammer"?
 
By AW1 Tim on November 3, 2011 10:16 PM

  So maybe it IS a nail gun firing assembly, eh?
 
By Argent on November 4, 2011 5:08 AM
I keep thinking this could be bigger than the average peashooter.  Maybe it shoots watermelons
 
By BillT on November 4, 2011 1:15 PM
They certainly don't *look* like cat hairs -- more like eyebrow sheddings from a Sasquatch...
 
By Casey on November 5, 2011 12:25 AM
That wouldn't be a sardonic remark about our Fearless Leader, now would it?

 
By John of Argghhh! on November 5, 2011 8:27 AM
Can't be referring to me.  I'm as scared as a bunny rabbit in the open at a dog park.