Tell me about the OA 9mm

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What is the advantage of a 9mm AR other than commonality in ergonomics and some parts? Does the gas system offer less recoil than a straight blowback carbine? How is the weight on the Olympic Arms carbine? Maybe trigger modification for a smoother trigger is better? I'm just thinking about the Beretta Storm side by side with a 9mm AR to see how they stack up. Could you get a really short 9mm AR, such as one with a 8" or 10" barrel?
 
I had a Storm and sold it to buy an OA K9GL. No regrets and it shot great with a 10.5" barrel and had a far better trigger than the Storm.

Oh, no gas system on a 9mm AR, straight blowback.
 
IMO the Beretta is a superior firearm and (as a bonus) unlike the AR can be converted to non restricted.

Reliability of function, better balance, lower weight, better accuracy and an inexpensive rail system all tilt the balance in favour of the Beretta. I currently own both guns and that's how I see the issue ...
 
I have an Oly K9GL with a 16" barrel and if you like the look of an AR15 but not the operating cost of .223, AR15 9mm is the perfect solution, theres tons of stuff you can do to an AR. The only thing I noticed is the K9GL seems to get dirty quickly from the blowback system so I tried running winclean 9mm ammo and its much cleaner now. recoil is minimal. I've tried a RRA AR15 9mm with 10.5" barrel and I find the balance better with the shorter barrel.
 
Now with those RRA 10rd 9mm Mags out, Legal to use in any 9mm AR15, I wouldn't buy the OA 9mm. Mag are cheap too 49.95.

I got a Colt 9mm Carbine that the barrel been cut down to 8" with the Flash Hider Re installed. With the FF RAS system 7" on the FH just sticks out of the RAS by a inch. Im replacing the A1 upper with a RRA A4 and going with a much smaller stock if I can.
 
Shot a Colt M-16K, long ago. FA with IVI ball ammo. There was no recoil. It was extremely accurate for an SMG too. Had no trouble hitting a man sized target at 150 yards, up hill.
 
Ok, so there are different 9mm ARs, some based on a more proper AR action? I did not know that. These 9mm ARs with less recoil and high accuracy sound like a good idea - they also come in short barrels and use 10 round mags. This could be ideal.
 
Unregistered said:
Ok, so there are different 9mm ARs, some based on a more proper AR action? I did not know that. These 9mm ARs with less recoil and high accuracy sound like a good idea - they also come in short barrels and use 10 round mags. This could be ideal.

Most of the civie 9mm ar15's have 16" barrels or longer

years ago colt made some models with a 10.25" barrel not too many in canada most of the short barreled 9mm ar15's have been cut down

they are fun to shoot Ive had my colt smg for years they do get dirty fast

you can tell the factory 9mm uppers as they have no forward assist and no hole for the gas tube
 
Unregistered said:
Ok, so there are different 9mm ARs, some based on a more proper AR action? I did not know that. These 9mm ARs with less recoil and high accuracy sound like a good idea - they also come in short barrels and use 10 round mags. This could be ideal.

You can get an RRA 9mm AR "pistol" ;) from Questar. 7" or 10.5" barrels. Or the parts. Got the .223 AR's, next AR for me will be 9mm.
 
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beltfed said:
Beretta Storms are junk. 9mm ARs are...still ARs.
These guns are not even in the same league.

Quite frankly this is totally at odds with my experience of these firearms.

Have you ever used a Beretta Storm? Have you ever used an Olympic Arms 9mm AR which uses Gloack mags?

Have you ever used these guns in a competition? I have used a Beretta Storm with some regularity over 2 years of competitive shooting. It has yet to let me down. I have used the 9mm AR twice, and was less than satisfied.
 
I have the OA 9mm kit on my AR I like the fact that I dont need to have a dedicated lower for my 9mm carbine and it uses the cheaper Sten Gun Mags
 
Gothmog said:
Quite frankly this is totally at odds with my experience of these firearms.

Have you ever used a Beretta Storm? Yes I have, it took me less than half a box of ammunition to realize it was total crap Have you ever used an Olympic Arms 9mm AR which uses Gloack mags?Not one that uses Glock mags, but I've used Savage's with the Sten mags

Have you ever used these guns in a competition? The only sub gun I've used in competition, was a Sterling, many years ago....I have used a Beretta Storm with some regularity over 2 years of competitive shooting. It has yet to let me down. I have used the 9mm AR twice, and was less than satisfied.I'm glad for you.

I've fired a dozen or so SMGs and the Storm would be at the bottom of my list. (if you even lump them together -I guess that is another discussion)
I never intended for my comments to be a personal attack on your choice of firearms, just adding my thoughts on the Beretta Storm. As always your milage may vary.

If you like the Storm, great -I wish you luck with it.
 
beltfed said:
I've fired a dozen or so SMGs and the Storm would be at the bottom of my list. (if you even lump them together -I guess that is another discussion)
I never intended for my comments to be a personal attack on your choice of firearms, just adding my thoughts on the Beretta Storm. As always your milage may vary.

If you like the Storm, great -I wish you luck with it.

I don't really consider your opinion a personal attack, but it is certainly quite surprising given my experience of the carbine.

Your description of the Beretta as 'junk' is indeed curious given your claim that it took you "... less than half a box of ammunition to realize it was total crap". One might wish for more detail given such a sweeping statement based on such a limited experience.

Did the rifle misfeed, was it innaccurate, was it poor handling? What exactly was the problem? In order to describe a gun as 'junk' or 'crap' there would need to be serious issues with function, IMO. Simple dislike for style or design wouldn't be enough to characterize a gun in this way, as these valuations tend to be more subjective in nature.

Please detail your experiences ... that will be more helpful.
 
You're right, my use of the Storm carbine is incredibly limited (100 rounds), & with luck it will stay that way.

Did the rifle misfeed, was it innaccurate, was it poor handling?
I had issues with it failing to strip rounds from the magazine and chambering rounds, failing to fire, and failing to eject. In the neighborhood of 15 stopages for the 100 rounds (Winchester Winclean) that I did or did not fire.
The accuracy was average.
It handled (admittedly 100 rounds is nowhere near long enough to get intimate with a firearm) and looks like an abortion. As you say, looks are realitively subjective, so score that for what its worth.
 
It sounds like you got a bad one ... I don't recall any failures to feed or extract with nearly 2000 rounds through mine. It has been a reliable and accurate shooter.

The placement of controls is not exactly ideal, but the more one uses the gun, the less a problem this is. The thumbhole stock is about the most unfortunate aspect of the carbine, and can be awkward. Otherwise its light weight and pointability are a big plus in handling.

Overall, including some time to get used to a somewhat novel design, I've found it a very effective sporting carbine.
 
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