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Posted: 7/13/2014 4:41:41 AM EDT
http://www.thefirearmblog.com/blog/2014/07/11/umos-universal-manual-operating-system-pump/
The UMOS, or Universal Manual Operating System is a novel retrofit kit for AR-15s that utilizes existing barrels, bolt carriers, and receivers, to convert a semi-automatic rifle into a pump-action centerfire wunderkind. As an added bonus, converting the rifle to manual operation has quite a few benefits. Manually operated rifles are not “banned” or “controlled” in most states, allowing you to have detachable magazines and other “naughty” bits You can create a ridiculously quite subsonic build Hunt with an “AR” in states that ban semi-autos. Have a familiar stroke for manual 3-gun divisions. Compatible with carbine, mid-length, and full rifle barrels, the $350 kit itself weighs in at 21.5 ounces (which is not bad, considering it replaces the gas block, handguards, etc.) and consists of six parts, with six screws holding it together tightly: Barrel nut, Barrel bushing, Main tube, Operating rod, Pump Pump key. |
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Posted: 7/13/2014 4:44:42 AM EDT
[#1]
DPMS had one during the 94" ban.
Not a terrible option if semis are banned. |
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Posted: 7/13/2014 4:45:04 AM EDT
[#2]
Supposedly SAFE II in NYS proposes to ban pump action rifles.
Wonder if mods like this unit are why...... |
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Posted: 7/13/2014 4:45:05 AM EDT
[#3]
I hate to say it, but if I wanted a pump AR I would get the Troy version.
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Posted: 7/13/2014 4:46:11 AM EDT
[#4]
Quote HistoryQuoted:
Supposedly SAFE II in NYS proposes to ban pump action rifles. Wonder if mods like this unit are why...... WAIT.....what do you mean Safe II? |
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Posted: 7/13/2014 4:47:15 AM EDT
[#5]
Quote HistoryQuoted:
I hate to say it, but if I wanted a pump AR I would get the Troy version. I like that this is a kit and you can return your rifle to an unneutered configuration. |
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Posted: 7/13/2014 4:48:18 AM EDT
[#6]
Quote HistoryQuoted: Supposedly SAFE II in NYS proposes to ban pump action rifles. Wonder if mods like this unit are why...... Yes it must be products like that, can't possibly be the fact that NY politicians are douche bags
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Posted: 7/13/2014 4:49:27 AM EDT
[#7]
Quote HistoryQuoted:
WAIT.....what do you mean Safe II? Quote HistoryQuoted:
Quoted:
Supposedly SAFE II in NYS proposes to ban pump action rifles. Wonder if mods like this unit are why...... WAIT.....what do you mean Safe II? You haven't seen the various mentions about a proposed SAFE II floating around Albany? You think they were going to stop with SAFE I? http://www.ar15.com/forums/t_8_9/555423_Diaz_is_at_it_with_unSAFE_II.html&light=SAFE%7CII |
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Posted: 7/13/2014 4:50:49 AM EDT
[#8]
Quote HistoryQuoted:
WAIT.....what do you mean Safe II? Quote HistoryQuoted:
Quoted:
Supposedly SAFE II in NYS proposes to ban pump action rifles. Wonder if mods like this unit are why...... WAIT.....what do you mean Safe II? The government and other criminals will be twice as safe when this one passes. |
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Posted: 7/13/2014 4:54:13 AM EDT
[#9]
That's neat - kind of reminds me of some older paintball guns. I wonder how difficult it would be to home build something like that.
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Posted: 7/13/2014 4:55:44 AM EDT
[#10]
Looks like an SCI Phantom paintball gun.
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Posted: 7/13/2014 4:56:05 AM EDT
[#11]
Quote HistoryQuoted:
Supposedly SAFE II in NYS proposes to ban pump action rifles. Wonder if mods like this unit are why......  
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Posted: 7/13/2014 4:59:43 AM EDT
[#12]
That's actually kinda neat.
Does it have a pump handle locking mechanism for when a live round is in battery (like with shotguns), or does it just rely on the user to not push the bolt rearward? __________________________________________________________________ Cross-platform electronic bound book (original thread). PGP public key. «nolite confidere in principibus, in filiis hominum quibus non est salus» |
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Posted: 7/13/2014 5:00:11 AM EDT
[#13]
... make one in 300BLK... and suppress it. Hmmm.... |
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Posted: 7/13/2014 5:02:19 AM EDT
[#14]
"Shall not be infringed"
This poster, despite user name, had nothing to do with, and encourages non compliance with SAFE ACT I. |
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Posted: 7/13/2014 5:02:59 AM EDT
[#15]
Quote HistoryQuoted:
You haven't seen the various mentions about a proposed SAFE II floating around Albany? You think they were going to stop with SAFE I? http://www.ar15.com/forums/t_8_9/555423_Diaz_is_at_it_with_unSAFE_II.html&light=SAFE%7CII Quote HistoryQuoted:
Quoted:
Quoted:
Supposedly SAFE II in NYS proposes to ban pump action rifles. Wonder if mods like this unit are why...... WAIT.....what do you mean Safe II? You haven't seen the various mentions about a proposed SAFE II floating around Albany? You think they were going to stop with SAFE I? http://www.ar15.com/forums/t_8_9/555423_Diaz_is_at_it_with_unSAFE_II.html&light=SAFE%7CII I used to love this state.
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Posted: 7/13/2014 5:06:53 AM EDT
[#16]
I was in Herb Philipson's in Oneida last week and they had a pump action AR and aa few with the compliant stocks. I threw up a little.
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Posted: 7/13/2014 5:07:09 AM EDT
[#17]
Quote HistoryQuoted:
Supposedly SAFE II in NYS proposes to ban pump action rifles. Wonder if mods like this unit are why...... Not really. Gun grabbers are afraid of everything that goes bang. They will go even after muzzle loaders. Just wait |
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Posted: 7/13/2014 5:07:52 AM EDT
[#18]
Quote HistoryQuoted:
... make one in 300BLK... and suppress it. Hmmm.... I wonder if the kit works with other calibers. Looking at the components I am thinking yes. |
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Posted: 7/13/2014 5:11:16 AM EDT
[#19]
Gotta be honest looks pretty cool, would def grab one to hunt with in pa, always had fancies the rem pump rifles.
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Posted: 7/13/2014 5:12:11 AM EDT
[#20]
Quote HistoryQuoted:
That's neat - kind of reminds me of some older paintball guns. I wonder how difficult it would be to home build something like that. Exactly! Reminds me of a phantom. |
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Posted: 7/13/2014 5:18:59 AM EDT
[#21]
Quote HistoryQuoted:
[ I used to love this state. Quote HistoryQuoted:
[ I used to love this state. Me too. My family has been here at least 200 years that I've been able to trace, long before Andy and half of those NYC guys pushing these laws even got off the boat Quoted:
Not really. Gun grabbers are afraid of everything that goes bang. They will go even after muzzle loaders. Just wait Even tyrants allowed their subjects to have shotguns with bird shot because they realize those are militarily ineffective weapons I would list what I think their wet dream gun limits are, but since we know they monitor this site I wont give them any ideas. You basically take NYC laws, mix in some of the foreign ban stuff and you'd be getting close for what I think they're aiming for...... |
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Posted: 7/13/2014 5:21:08 AM EDT
[#22]
Another option for the Brits
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Posted: 7/13/2014 5:25:36 AM EDT
[#23]
Innovative.
More regulations = more innovation. |
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Posted: 7/13/2014 5:29:43 AM EDT
[#24]
I think the most unbannable weapon is a single shot, break-action, 20 ga shotgun.
They'll just ban any marginally effective ammo and regulate the shit out of birdshot. That's the way it was in most parts of Europe. |
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Posted: 7/13/2014 5:47:10 AM EDT
[#25]
Looks better than others I've seen. If that was my only option my safe would contain a few. Thank God I live in a gun friendly state at least for now.
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Posted: 7/13/2014 5:51:13 AM EDT
[#26]
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Posted: 7/13/2014 6:05:00 AM EDT
[#27]
Quote HistoryQuoted:
Another option for the Brits It will be interesting to see if it ever leaves the country. ITAR restrictions have basically handicapped smaller firearm companies from developing international markets. |
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Posted: 7/13/2014 6:08:03 AM EDT
[#28]
Are BUIS banned as well?
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Posted: 7/13/2014 6:13:30 AM EDT
[#29]
While this is a great idea. I can all but guarantee you that it would get you arrested in one or more of the ban states. That fact that you could install a semi auto upper is going to cause problems.
Also Undefined is correct. They should have made put a rail in front so that you can add irons. |
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Posted: 7/13/2014 11:39:43 AM EDT
[#30]
Quote HistoryQuoted:
I think the most unbannable weapon is a single shot, break-action, 20 ga shotgun. They'll just ban any marginally effective ammo and regulate the shit out of birdshot. That's the way it was in most parts of Europe. If it ever comes to that, cut shells would be an asset. |
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Posted: 7/13/2014 11:47:22 AM EDT
[#31]
How about a FSP or a way to mount a light?
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Posted: 7/13/2014 11:48:08 AM EDT
[#32]
lulz
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Posted: 7/13/2014 11:55:30 AM EDT
[#33]
Quote HistoryQuoted:
... make one in 300BLK... and suppress it. Hmmm.... That would be interesting |
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Posted: 7/13/2014 11:56:36 AM EDT
[#34]
Quote HistoryQuoted:
How about a FSP or a way to mount a light? Lights (and front sights) are banned for the children. |
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Posted: 7/13/2014 11:56:52 AM EDT
[#35]
Sort of want
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Posted: 7/13/2014 12:00:28 PM EDT
[#36]
Now to figure out a creative way to bump fire it.
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Posted: 7/13/2014 12:02:57 PM EDT
[#37]
I like it. I would like to see how it shoots from an accuracy stand point
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Posted: 7/13/2014 12:06:14 PM EDT
[#38]
Interesting concept for sure, and good for the creative guy who developed this. (I won't get into the fact that people in some areas should not have to have this as their only AR option)
It's a reasonable enough price that people that want to try it out can give it a shot. Since it uses standard AR barrel assemblies, guys could use it for subsonic work, or a pump rifle in one of the big bore calibers. Or for working up loads that may not cycle a gas action, but can be manually operated just fine. If it gets developed further, I wonder if it could incorporate the following: - Hide the extension that connects the pump to the bolt carrier under a full length picatinny rail. - Free float the pump action by supporting off of the barrel nut, like a typical free float tube. - With the pump action supported from the upper receiver, use any typical gas block up front for sights, rails, etc. I also wonder if there is any danger in the bolt being held closed only by spring pressure. When holding the pump handle, if you were operating the rifle quickly, could you pull the action out of battery? |
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Posted: 7/13/2014 12:10:50 PM EDT
[#39]
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Posted: 7/13/2014 12:14:31 PM EDT
[#40]
Fucking disgusting. Rather have the lever action AR
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Posted: 7/13/2014 12:23:50 PM EDT
[#41]
reminds me of an autococker pump.
edit: phantom |
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Posted: 7/13/2014 12:25:12 PM EDT
[#42]
Why not just design a model where the bolt locks back every round and you press a button to release it?
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Posted: 7/13/2014 12:39:53 PM EDT
[#43]
Quote HistoryQuoted:
If it ever comes to that, cut shells would be an asset. Quote HistoryQuoted:
Quoted:
I think the most unbannable weapon is a single shot, break-action, 20 ga shotgun. They'll just ban any marginally effective ammo and regulate the shit out of birdshot. That's the way it was in most parts of Europe. If it ever comes to that, cut shells would be an asset. If it ever comes to that, we've already lost. |
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