Sniper Rifle Build

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Sniper Rifle Build

Postby Bluemustang67 on Mon Mar 14, 2011 9:53 am

Hello all,

I'm looking at building a spring sniper rifle, what I assume to be a less expensive project than an AEG build. (I can throw up to $500 at this.) I've been scouring the internet for build plans but to no avail. Any experienced snipers out there, I would appreciate it if you could respond listing the compatable parts I would need to begin and finish this project. I don't need a stock - I've built one in my basement from a thick chunk of leftover cedar, and have incorporated the trigger slot and magwell. Really, I just need to know Internals - I know I need a Outer Barrel, Cocking Lever, Hop Up, Inner Barrel, Trigger Assembly and a strong Spring, but what else is needed/where can I obtain these parts?

Please don't tell me I can't do this - I'm positive I'm not the first person to attempt a project of this scale. I'm not some 14 year old kid on a limited budget, or sucking money from mommy, and I don't want any wise ass ridicule, I'll ignore it when/if it hits. I simply want some advice from an equally mature adult on what parts are needed to complete this project.

Thank You.
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Re: Sniper Rifle Build

Postby Jonas on Mon Mar 14, 2011 10:19 am

Your first step is to decide whether you want to use APS2 or VSR10 parts (But since you've already cut in the magwell and trigger slot, you might just want to go with whichever one fits better), VSR10 has the advantage of a larger cylinder, which means it can move more air, allowing for a longer barrel, the VSR10 cylinder can use up to a 677mm barrel, where as the APS2 cylinder can only move enough air for a 505mm.

Your next step is to find the parts, you've already got a stock (Which is awesome by the way, you should post up some pictures of it), so you'll just need the internals.
Parts:
Bolt handle
Bolt
Cylinder
90 degree Piston
Piston head
Cylinder head
Trigger mech
90 degree sears (unless you buy a high-quality trigger box that already has high-quality 90 degree sears, such as Laylax)
Bucking
Hop-up
Outer Barrel
Inner barrel
Rail
Receiver
Spring
Spring guide

For internals, I'd recommend Laylax, PDI, Polar Star, Firefly, and First Factory. You can also email Polar Star, and they'll custom-machine parts for you. For externals, check the boneyard on ASGI.
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Re: Sniper Rifle Build

Postby Bluemustang67 on Mon Mar 14, 2011 11:12 am

Thank you. This is just the kind of reply I was looking for! It's great to hear from an experienced airsofter who actually knows what they're talking about. So I wanted to express my sincere thanks.

On the subject of the stock, I'll try and post a few pictures within the next few days - I'm having trouble uploading the pictures at the moment. I was thinking of checking the boneyard for externals, so thank you for reinforcing my thought. I have some polymer rails from an old magpul M4 project, and a few old hop ups, so that saves me about $40.

Again, thank you for the great advice, I'll be using VSR10 parts and I'll post a list of the parts I'll consider for you to review, if you would like to.

Thank You.

::EDIT::

Here's a list of parts I'm considering - It's a mixture of PDI/Laylax/Polar Star/Firefly

Externals -
http://www.airsoftgi.com/product_info.p ... ts_id=6401 - PDI Tornado Tapered Outer Barrel (Unless I can get my hands on a Boneyard Item)
Internals -
http://www.airsoftgi.com/product_info.p ... ts_id=5756 - Polar Star Sear Set for VSR10
http://www.airsoftgi.com/product_info.p ... ts_id=4008 - Firefly VSR10 Hop Up Bucking
http://www.airsoftgi.com/product_info.p ... ts_id=4113 - Laylax PSS10 VSR10 Zero Trigger (Comes with Piston/Piston Head I believe?)
http://www.airsoftgi.com/product_info.p ... ts_id=5712 - Airsoft GI PE Reinforced Spring Guide
http://www.airsoftgi.com/product_info.p ... cts_id=674 - PDI 190% Spring
http://www.airsoftgi.com/product_info.p ... ts_id=4115 - Laylax PSS10 VSR10 Damper Cylinder Head
http://www.airsoftgi.com/product_info.p ... ts_id=7490 - Masamune Teflon Coated Cylinder

A few of these items are pending - I'm considering purchasing a Boneyard WELL MB07B and pulling out the assembly/using the barrel to save me $300+/-
http://www.airsoftgi.com/product_info.p ... ts_id=2473

Thank you.
Upgraded WELL MB03 - Metal Piston, Metal Spring Guide, ASGI Sear Set, & Upgraded Spring
Repaired Slam Fire
Many Kills.

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Re: Sniper Rifle Build

Postby Jonas on Mon Mar 14, 2011 12:18 pm

http://redwolfairsoft.com/redwolf/airso ... G_Spec.htm
That's a very good hop-up.

You might not need the Polar Star sears if you're getting a Z-trig, but I'll look into it when I get home.

You'll still need an upper receiver
http://redwolfairsoft.com/redwolf/airso ... _VSR10.htm
That's the only one I can find, and it's out of stock, if I were you I'd probably just buy a bone-yard gun for that.
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Re: Sniper Rifle Build

Postby Bluemustang67 on Mon Mar 14, 2011 1:06 pm

Okay, thank you again. I'm seriously considering purchasing the WELL Sniper Rifle from the Boneyard and then modding that to my exact specifications based on what needs replacement. The stock I built is similar to an EBR Kit, but it's wooden and lacks a retractable stock; I may cut the body and add a metal rod to the inside of the stock to allow retraction with a O-Ring to hold suction.

At least buying from the Boneyard I stand a SLIM chance of saving myself a good amount of money and obtaining a wicked sniper rifle for $250-$300 and it will be custom made. Thank you for all your help!

::EDIT::
How do you like the A&K SVD? A friend of mine was looking into getting it, but wasn't sure if it's worth the price stock.
Upgraded WELL MB03 - Metal Piston, Metal Spring Guide, ASGI Sear Set, & Upgraded Spring
Repaired Slam Fire
Many Kills.

Armory Graveyard -
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ASGI G4A2 Silent Death - Upgraded & Sold
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Re: Sniper Rifle Build

Postby Ender on Mon Mar 21, 2011 12:25 pm

Z-trig doesn't require sears
and Jonas, you have the cylinder values backwards, VSR can push 505, APS can push 677
Also, you don't need a new receiver unless you go PDI for the compression parts
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Re: Sniper Rifle Build

Postby Jonas on Mon Mar 21, 2011 3:22 pm

Really? I have piston head diameter as 22mm for VSR and 19 for APS2, both with a 107mm long piston, I don't have measurements for cylinder length, so I used volume of the piston instead, assuming that the volume of the cylinder with the piston pulled back was about the same, and calculated with a 6.01mm barrel.
But he does need a receiver, as it stands he just has a body.
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Re: Sniper Rifle Build

Postby FUZZYmufflerZzZ on Mon Mar 21, 2011 3:54 pm

i'd say just get the boneyard well as a base and replace all of the performance related parts and the stock. zero trigger comes with the entire trigger box and the piston. i'd go into further detail but i'm too tired.
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Re: Sniper Rifle Build

Postby Ender on Tue Mar 22, 2011 10:05 am

sorry, I was going based off the upgrades listed.

As far as I've heard, you can't get more that 505 with a VSR, but people have said that APS2 can push immense amounts of air, and APS96 even more
I make and sell custom cutting boards. Pricing is very reasonable and the worksmanship very good. PM me if interested.
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Re: Sniper Rifle Build

Postby Jonas on Tue Mar 22, 2011 10:14 am

Going off of the piston volume vs the barrel volume, I find the actual barrel length, then using the maximum barrel lengths that I found on Arny's Airsoft (some site like that, it's reputable) for AEG's, I took my calculation of barrel length and theirs, used that to make a ratio, and then implemented the ratio to determine the ideal barrel length.
Granted, the volume of the entire piston is not being used, but I figured that the error would carry across all the equations, meaning that they're all accurate as they are all calculated based on the AEG piston.
It's also true that the VSR would have a harder time, as it has a larger piston head, and thusly more friction, as well as moving larger amounts of air through a smaller hole. There's a lot of math involved to find the ACTUAL ideal barrel length, but I figure that my calculations are close enough, just for a general idea.
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