Single shot airsoft

Building or modifying BB, Airsoft, and Pellet type of guns. Show off your custom designs, find tips and other discussion. Target practice only!
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farcticox1
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Sun Jul 09, 2017 3:15 pm

Making a new post for my airsoft project, progressing slowly but surely, bit of assembly work this afternoon in the workshop.
66 (1).jpg
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farcticox1
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Wed Jul 12, 2017 7:16 pm

As usual I had a change of plan, ditched the burst fire, going for single shot, as I originally intended. Found a sweet piece of pre-drilled 20mm round bar which I opened up to 10mm ID in the drill press, (oh for a lathe)

Bolt open (no hole in barrel yet)
77 (1).jpg
Closed, locking ramp puts pressure on O ring as I want the barrel hole close to the end, the plate fixing bolts are in slots so I can adjust the pressure on the Oring
77 (2).jpg
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jackssmirkingrevenge
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Thu Jul 13, 2017 4:02 am

Do you plan to use this for airsoft games or is it just for hole punching?
hectmarr wrote:You have to make many weapons, because this field is long and short life
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farcticox1
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Thu Jul 13, 2017 4:31 am

Just for fun
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Cthulhu
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Thu Jul 13, 2017 5:31 am

This is much more advanced than the single shot airsoft guns my buddies and I made back in the day!

We used to use 100mL syringes with a pipe epoxied to the nozzle and a bunch of rubber bands attached to the plunger to replicate Muskets.
Push an airsoft bb with a wad down the barrel, pull back the plunger and poof!
This weapon serves to silence the noisy speakers of the stupid of the other street! (joke) -Hectmarr
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farcticox1
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Fri Jul 14, 2017 6:03 pm

Made a clamp today for the front section of the gun to secure the barrel to the pvc chamber
clamp (2).jpg
clamp (3).jpg

M4 thread on top for front sightpost
clamp (1).jpg
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farcticox1
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Sun Jul 23, 2017 4:30 pm

PVC painted flat black, mostly assembled now, going to mount a small 4x scope I have on it. Connector on the end of the barrel is to attach extension/silencer, about 8" long.
20170723_160400.jpg
20170723_160429.jpg
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jackssmirkingrevenge
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Mon Jul 24, 2017 4:49 am

Looks good!

Since you are well versed with high strength metal constriction should consider a move to higher pressures in the 450-850 range using paintball bottles, supersonic airsoft BBs are more than feasible.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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farcticox1
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Wed Jul 26, 2017 6:20 pm

Some mods in progress, changed bolt to left side, I'm right handed but find it easier to load with my left. Mounting scope bracket, making dummy flash hider.
20170726_183901.jpg


Did some test firing and found a leak, all in pieces now :cry:
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farcticox1
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Thu Jul 27, 2017 5:43 pm

Back together now, works perfectly, just need to get scope, sights and laser set up.
20170727_190253.jpg
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farcticox1
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Fri Jul 28, 2017 6:47 pm

I fired a good 100 shots through it and the accuracy is terrible, just everywhere, even at 10'. I'm hoping it's the compression fitting I put on the end of the barrel has caused a small ridge inside and is messing it up, gonna cut the last 1" off the barrel and see if it fixes it :idea:
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Cthulhu
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Sat Jul 29, 2017 3:44 am

farcticox1 wrote:I fired a good 100 shots through it and the accuracy is terrible, just everywhere, even at 10'. I'm hoping it's the compression fitting I put on the end of the barrel has caused a small ridge inside and is messing it up, gonna cut the last 1" off the barrel and see if it fixes it :idea:

If it doesn't fix it, consider adding a hop up like a real airsoft gun or looking towards a heavier bb. Those are usually the most common issues with accuracy for airsoft guns.
This weapon serves to silence the noisy speakers of the stupid of the other street! (joke) -Hectmarr
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farcticox1
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Sat Jul 29, 2017 10:52 am

I like the idea of hop up, now how to make one :idea:

Would a nylon tipped set screw work, or does it need to softer like rubber ?

played with it a bit more, using 0.2g over 0.12g BB's helps a bit, also extending the barrel helps a lot, seems like there is so much extra air coming out behind the BB that it pushes it off course. quite a loud crack and recoil with the short barrel, quiter and smoother with the longer barrel.
long barrel.jpg
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hectmarr
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Sat Jul 29, 2017 6:20 pm

looks great! :bounce: :bounce: Do you have a video? I would like very much to see how his creation shoots. Good project. I will try something similar in the future, this idea has been around for a long time.
Ideas don't make holes, guns do!
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farcticox1
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Sat Jul 29, 2017 6:35 pm

I'll try and do one when it's completely finished :cheers:
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