For some reason, it gives me A-10 warthog (jet) vibes. Maybe you should name it after that or the avenger for the warthogs’s main gun.
Regardless, really interesting/impressive design.
I am back, and back on the 22lr upper. M11-33
- Thread starter Tobias Arms
- Start date
For some reason, it gives me A-10 warthog (jet) vibes. Maybe you should name it after that or the avenger for the warthogs’s main gun.
Regardless, really interesting/impressive design.
Gaujo
UZI Talk Supporter
Whoa!
Gatling gun makes me think a crank trigger but you say pump action. How would that work?
Also, how are you working the nylon and inserting steel for a prototype?
This project is really cool and from a real gun designer no less. I'm excited!
Tobias Arms
Well-known member
figuring out how to get the pump action into rotary action is part of the trick. still untested and work in progress. but there are lots of mechanical mechanisms for this. you can see gears and a belt in the pic i posted, but that might not be the final design.
M1133 PT1 shown above has metal rails glued into the nylon. literally blue tempered steel strips inserted into slots and superglued in place. PT2 will be different. Though i like the simplicity of just gluing in the rails, the glue will eventually give way, so some sort of mechanical connection is also needed.
M1133 PT1 shown above has metal rails glued into the nylon. literally blue tempered steel strips inserted into slots and superglued in place. PT2 will be different. Though i like the simplicity of just gluing in the rails, the glue will eventually give way, so some sort of mechanical connection is also needed.
Tobias Arms
Well-known member
will do as many versions as I can. I only have an M11-9 myself though. But i know some locals that have one.
"...but there are lots of mechanical mechanisms for this. you can see gears and a belt in the pic i posted, but that might not be the final design."
How about using the shuttle track that many belt feds use?(ex. Browning 1919) It's simple and cheap to make. You just need some kind of ratchet to keep movement in one direction. Firing on both the forward and backward stroke, ala the binary trigger, would really speed things up. You show six barrels but that would add up to a lot of cost and weight. Consider two to three barrels for the rate of fire that you are likely to get. Or one barrel fed by a rotating drum like a revolver but the drum is fed in the Gatling fashion. Just some thoughts for you.
A pump action Gatling is quite a clever and unique idea.
How about using the shuttle track that many belt feds use?(ex. Browning 1919) It's simple and cheap to make. You just need some kind of ratchet to keep movement in one direction. Firing on both the forward and backward stroke, ala the binary trigger, would really speed things up. You show six barrels but that would add up to a lot of cost and weight. Consider two to three barrels for the rate of fire that you are likely to get. Or one barrel fed by a rotating drum like a revolver but the drum is fed in the Gatling fashion. Just some thoughts for you.
A pump action Gatling is quite a clever and unique idea.
CMMG style AR22 barrels are fairly common in varying lengths including pistol. At least a couple different companies make them. The CMMG ones definitely work fine w/ machine guns.
Right To Bear 4.5" .22 AR Barrel - 22LR
The .22LR 4.5-inch barrel from RTB features a salt bath nitride finish and is made from 4140 chrome moly vanadium for a tough, durable design.
www.righttobear.com
Tobias Arms
Well-known member
that is basically the plan. some ratchets on the pump that grip the teeth on the belt, making it move only one direction when pumped forward or back. less barrels would be nice, but not ready to go smaller diameter on the barrel group yet. friction becomes a problem quick.
That's a good price on the AR22 barrel. but man that thing is bulky looking. It makes that front chamber diameter look small. anyone have one to measure?
I went with this one for now https://www.acculite22.com/4-5-NF-TH-w-Cap-Black-Matte-p/4.5tnf-bm.htm
It is aluminum with a liner inserted.
Concorde
Moderator, UZI Talk Life Member,
Well, duh... no way around that with multiple barrels!
Tobias Arms
Well-known member
can always go with a steady cam mount if it is too heavy, and you are not Jesse Ventura. But yes, anything other than 22lr in a multi barreled gun would get very heavy fast.
Same as any AR-15 barrel extension. 1" OD.
The part sticking out for a CMMG AR22 is ~0.450"
Probably can't go wrong w/ either a 10/22 or AR22 barrel. The difference comes down to retention. The AR has the ring which should be easy to capture in a clam shell design like yours. Did you design the 10/22 locking wedge into your model or is it a separate piece?
In keeping with your buy vs make mantra (smart for any small manufacturer for common parts.) I would also suggest designing to use some common extractor vs making your own. (I saw your twitter post where you made one.) Just to use the CMMG example again: there are at least 3 suppliers for their AR22 one: CMMG, taccom, and BoreBuddy. I'm sure there are tons of ruger 10/22 extractor suppliers too if that one would fit your design better. For a one-off it doesn't really matter too much but for production, should be able to just buy all the small fiddly parts off the shelf: screws, springs, firing pins, extractors, etc.
Tobias Arms
Well-known member
True, it would be nice to find a common extractor. i will look at those. not a fan of the 1022 extractor for a subgun. one case rupture and its gone. But the ones for the AR22 conversions are pretty decent (pinned in place).
but getting a custom one laser cut is not that difficult or expensive either. I cludged the one together for PT1 just because it is more of a test bed, and not what the final product will look like. I am thinking of an aluminum trunion for the barrel to mount to.
the .450" was what i was wondering.
got whatever the kid and wife had, so not getting much done this week.
but getting a custom one laser cut is not that difficult or expensive either. I cludged the one together for PT1 just because it is more of a test bed, and not what the final product will look like. I am thinking of an aluminum trunion for the barrel to mount to.
the .450" was what i was wondering.
got whatever the kid and wife had, so not getting much done this week.
Tobias Arms
Well-known member
New mag catch and magwell. Looking at a lower receiver extension idea. The lower extension would be bolted onto the lower. Then an upper would attach to it using the existing mac assembly pin. This will allow for swapping out mag wells so perhaps it can use multiple mags.
The Mags I am focusing design on are cp33 and then later AR conversion mags (ceiner style, maybe others too)
The Mags I am focusing design on are cp33 and then later AR conversion mags (ceiner style, maybe others too)
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