UI Mark III - Commando

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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Lentamentalisk
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Fri Mar 21, 2008 6:27 pm

That is very very nice. So nice I am close to just going out and making my own like that. Great design!
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Brian the brain
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Sat Mar 22, 2008 4:44 pm

Will we ever see a hard air bbmg?

This concept would be great with metal bb's..
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Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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NeoSpud
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Sat Mar 22, 2008 5:06 pm

I've made 'em in .177 caliber, but frankly I prefer airsoft because I can shoot people with them and not go to jail*. :lol:

It only takes a quick barrel change to make this one -or any of the UI series- into .177. I get my BBs for really cheap if they're airsoft, so for practicality I tend to use them more frequently over .177 caliber.


*A caveat: don't shoot people with airsoft guns when they're not playing airsoft. THAT will land you in jail
:wink:
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clide
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Sat Mar 22, 2008 11:21 pm

Good to see you around again, and nice work as always. Looks like the customer is really happy with it.

Do you use your Mark II in matches a lot?
<a href="http://gbcannon.com" target="_blank"><img src="http://gbcannon.com/pics/misc/pixel.png" border="0"></a>latest update - debut of the cardapult
brother361
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Sat Mar 22, 2008 11:46 pm

two quick questions
1.what it the chamber plastic called and where did you get it
2what is your vortex block made of
BTW:AWSEOME :lol: :lol: :lol:
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NeoSpud
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Sun Mar 23, 2008 12:01 am

Clide!!! Long time, no see!

I got into airsoft with my BBMG, and I still play with it. Now that I've got a hop-up unit for it, there's no reason not to use it. I've improved upon the design continually, and now I've got a really solid gun that does all I expect from it. It rocks, and has cost me much less than a similarly outfitted "real" airsoft gun. Not too bad, methinks.


Brother-
1. 2" Schedule 40 clear PVC from McMaster-Carr (McMaster.com)
2. 2" PVC rod, also from McMaster
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brother361
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Sun Mar 23, 2008 11:27 am

thanks for the quick reply and 1 more question sorry
when you put your spring in does it compress your bbs tightly or what
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Velocity
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Sun Mar 23, 2008 12:50 pm

Very nice work Mr. Plow! I always thought that your BBMGs were the best.

What kind of spring is that? Any information, including specifications or a McMaster part number would be greatly appreciated.

Keep up the great work!
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elitesniper
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Sun Mar 23, 2008 1:16 pm

Very well done, did you block off the cam coupling from the stock with a pvc disk of somthing?
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NeoSpud
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Tue Mar 25, 2008 2:52 pm

elite- that's actually a plug that I bored out to accept a short length of 1" pipe, in which the spring rides. The pipe is just long enough to accept the ~3" of the compressed spring when the chamber is fully loaded.

brother & velocity - the spring compresses the BBs fairly tightly, but not enough to jam them. They're actually springs from the buttstock assembly of an AR-15 rifle.
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elitesniper
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Tue Mar 25, 2008 2:56 pm

ahh, good idea! Oh I though that stock was from a bike pump base :P
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NeoSpud
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Tue Mar 25, 2008 3:04 pm

elitesniper wrote:ahh, good idea! Oh I though that stock was from a bike pump base :P
It goes from 1" pipe to 1" coupling to 1.5" ABS (hence the black color), with a plug in the end attached to a piece of 1/4" sheet cut to fit a slip-on AR-15 buttstock pad. It's a SOLID stock!
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judgment_arms
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Tue Mar 25, 2008 3:29 pm

Looks nice, 90rps works out to… 5400rpm… that means that the 1500 round magazine lasts under a quarter of a second!

Say NeoSpud, what ever became of your CylBelt?
NeoSpud’s website wrote: Very poorly done MS paint diagram of the major components of the cannon (as well as a badly drawn version of the 1.3 air system) Here
Links broke, is it possible for you to E-mail me the pictures described in the quote from your website, please?
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NeoSpud
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Tue Mar 25, 2008 4:34 pm

Looks nice, 90rps works out to… 5400rpm… that means that the 1500 round magazine lasts under a quarter of a second!
You mean "quarter of a MINUTE"??

Oh man, I totally lost motivation to finish the cylbelt page, haha :D

Maybe some day I'll finish it... I'll see if I still have that diagram somewhere...
"oh my god, I'm so old now" -me, 2020
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judgment_arms
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Wed Mar 26, 2008 8:23 am

NeoSpud wrote: You mean "quarter of a MINUTE"??
Yeah, sorry… your going to have to cut me a little slack, I’ve bean sick as dog since last Friday. :(
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