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Old 05-03-2020, 10:13 AM   #1
Fynn64   Fynn64 is offline
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Custom vsr stock

As I just got myself a small mill, I can finally make a custom stock for my vsr!
While this stock has definetely been inspired by the stock careful made for plazmaburn, it will still be a different stock.

The stock will be made from 2007 aluminium, with a magpul K2 grip, a POM cheek rest and probably an AAC T10 buttplate.

I will try to make the base out of one single piece, with the trigger guard/grip mount and the stock end being separate pieces. My goal was to build a lightweight, yet strong stock.



To start of, I made the groove for the outer barrel to sit inside. Since I neither have the proper sized ball nose endmill, nor wouldnīt I even be able to fit it in my mill, I just used a normal endmill, and milled 1mm deep into the material, and then went for a smaller width cut after each step. Thereīs actually a very useful formula for calculating the with of a circle at different heights. Of course I will have to file this round afterwards.





More to follow...
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Old 05-03-2020, 03:19 PM   #2
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Sounds very cool. Keep it up!
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Old 05-03-2020, 06:56 PM   #3
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Looks like Plaz's VSR stock
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Old 05-04-2020, 01:48 AM   #4
Fynn64   Fynn64 is offline
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Originally Posted by whalesmash View Post
Looks like Plaz's VSR stock
The front part does look similar in shape, yes. That is, because both stocks were designed to be lightweight, and therefore will only have material in areas where itīs really necessary. Other than that, the stock will be completely different.
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Old 05-06-2020, 12:15 PM   #5
Fynn64   Fynn64 is offline
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05/06/2020

I made the groove for the bigger part of the receiver, and the hole for the screw insert thatīs sticking out of my receiver.





Now the receiver can roughly fit into the stock:
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Old 05-06-2020, 11:10 PM   #6
 
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Looks nice. Glad to see someone take the idea forward. Though when I make a new stock I'm going to build it similar to the Smokey stock I have. As I really like the look and construction method.

That reminds me I need to post about that when I have free time.
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Old 05-09-2020, 11:38 AM   #7
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Started making the pockets for the trigger, the magazine and to save weight:








This took forever...

Also used a longer endmill to mill out the pockets to the correct depth, as the other endmill was to short.


Diving into the material vertically with the long endmill was pretty scary...
I really need to buy some big drill bits for metall...
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Old 05-09-2020, 02:54 PM   #8
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The finish you are achieving so far looks pretty good, so keep it up!

I'm curious as to how much the whole stock will weigh once it's all done. I've always been hesitant to the chassis style stocks because I feel like they would weigh more than a normal polymer one. Not that I expect it to weigh as little as the Marui plastic stock, but I wonder how it will compare to something like the ML stock.
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Old 05-09-2020, 03:51 PM   #9
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Originally Posted by Masada View Post
The finish you are achieving so far looks pretty good, so keep it up!

I'm curious as to how much the whole stock will weigh once it's all done. I've always been hesitant to the chassis style stocks because I feel like they would weigh more than a normal polymer one. Not that I expect it to weigh as little as the Marui plastic stock, but I wonder how it will compare to something like the ML stock.
I‘m also pretty curious on how much this will weigh.
Do you know how much the ML stock weighs? I‘ve seen it listed at 1,5 to 1,8kg.
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Old 05-09-2020, 04:41 PM   #10
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Originally Posted by Fynn64 View Post
I‘m also pretty curious on how much this will weigh.
Do you know how much the ML stock weighs? I‘ve seen it listed at 1,5 to 1,8kg.
3.35lb (1.51kg) with none of the length spacers.
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Old 05-10-2020, 04:50 AM   #11
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Quote:
Originally Posted by Masada View Post
The finish you are achieving so far looks pretty good, so keep it up!

I'm curious as to how much the whole stock will weigh once it's all done. I've always been hesitant to the chassis style stocks because I feel like they would weigh more than a normal polymer one. Not that I expect it to weigh as little as the Marui plastic stock, but I wonder how it will compare to something like the ML stock.
Iīve just weighed it, and the current weight is 2460g. There are some more pieces that will go onto the stock (grip, triggerguard, buttplate...). I expect those pieces to add about 400g. But I will also remove some more material.
The finished piece should weigh about 1.7kg, if my calculations were correct.

Edit: Apparently I somehow managed to weigh the stock including the weight of the scale. When I weighed the stock itself, it weighed about 400g less, so roughly 2000g. This means, that if everything works as intended, the final weight should be about 1.3kg.
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Last edited by Fynn64; 05-10-2020 at 06:29 AM.
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Old 05-10-2020, 01:22 PM   #12
Fynn64   Fynn64 is offline
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I made the pocket for the magazine and hop up block a bit deeper, but left some material because I wanted to make the small pockets for where your fingers go when changing the magazine.



Also removed some material from the middle pocket, but still left material, where the screw goes through.



Next up, i took my saw and cut about 12mm of material off of the stock.



Everything milled flat:

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Old 05-10-2020, 04:05 PM   #13
Masada   Masada is offline
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Looking good so far. 1.3kg would be pretty sweet too.
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Old 05-11-2020, 09:29 AM   #14
Fynn64   Fynn64 is offline
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05/11/2020

Filed the steps, I made before, round (which was probably the most annoying part).

Front:


And back:


Also made the hole for the rear receiver screw (and shortened said screw).



As I donīt own a counterbore, I just used a 10mm endmill to counterbore the hole.



Screw drops right into place:


Now the receiver can be screwed into the stock (currently with just the rear screw though).
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Last edited by Fynn64; 05-13-2020 at 07:35 AM.
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Old 05-13-2020, 07:16 AM   #15
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Cool project, looking good! Not to be critical, but informative, you did counter bore the hole for the receiver screw. Counter bore is a square-offed hole ] and counter sink is a tapered hole > for flat heads (82deg for inch 90deg for metric).

Keep up the great work! and keep us posted.
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