8mm Bolt Action QEV

[vng21092]

Alright guys I'm VERY excited and proud to present to you my FIRST ever BOLT ACTION RIFLE. I've made several attempts in the past but I always gave up but this time I stuck on through and finished it. Operating at 55 bar line fed from a HPA tank, 18'' long barrel, QEV piloted by a slide valve. I took many pictures documenting the build process, here it goes.

1) Nothing special, but its the first epoxy cast piston I ever made, turned out pretty well, hope JSR is proud.



2) Now, onto the bolt housing. Its came from the same piece of pipe as the barrel, I ordered a 36'' piece so I had some left over. I measure the location of the hole to make sure it matched up with the PVC house it was inside of. The housing has an O-Ring super glued onto the end where the BB gets pushed through. The bolt is just a 1/4'' bolt, using a grinder to make the tip. I put heat shrink on the bolt to add some thickness, and I put a second layer on the tip of the bolt so it sealed against the O-Ring.


3) Bolt in housing


4) Trying to show the seal between O-Ring and bolt tip


5) Here is the breech hole


6) Bolt mechanism all together


7) Just so you can kinda visualize whats going on inside the tee. The black is the tip of the bolt, the gray is the barrel, the purple is the BB, and the little black under the BB would be the detent.


8 ) My super complex barrel detent (just kidding, it's just a piece of tape)


9) ALRITE, TIME FOR SOME BODY SHOTS






10) Another piece from the leftover barrel used as a gravity fed 6 round magazine


11) Magazine inserted


12) And of course, this
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13) The whole system

[jackssmirkingrevenge]

JSR is proud

Very much so, even as I saw the thumbnail!

Fantastic job all you need is a slightly more refined spring loaded mag

[django]

Nice work!, I love it, so much so that I spent ages yesterday making one myself BUT I find that if you don't fling that bolt forwards REALLY fast then the bbs drop down into the Air inlet( lowest part of the Brass T Fitting). Im trying to improve it

[vng21092]

haha yea, that does happen. What I think could work is if the barrel protrudes inside the tee enough that its basically touching the bolt housing (the tip of the bolt would be inside the barrel at this point), and you drill a hole right beneath where the bolt tip is. Of course the hole would have to be a smaller diameter than the BB or it would fall through there too .Kinda like how the commercial ones are built. Like so:

[Doodmens]

Wow that is reallyyyy sexy! Want to build me one of these sooo bad now! Nice scope as well, was it expensive? I see you use those little brass blocks as fittings, are those regular fittings or did you make those yourself? never seen those before; where I buy them, they are always in pipe-shape.
Good job!

[vng21092]

Thanks buddy! Actually, the scope was rather inexpensive, I was skeptical at first because of the low price, but after I got it I was really happy with it so I bought another one just in case. As far as the brass fittings goes, I purchased all of them off Amazon.

[PAweaponTech]

Another solution to your projectile falling into air supply is to have the air come through the bolt instead, but that raises other issues.