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View Full Version : AR15 that fires the FN 57 round


nikonuser
09-03-2008, 8:01 AM
I dont know if this a dup post but this is interesting. An AR15 upper with magazine that holds 50 rounds of FN 57 rounds and installs to a standard AR 15 lower. Definitely not CA legal configuration but really innovative. http://www.57center.com/18.html?sm=68015

PolishMike
09-03-2008, 8:04 AM
been posted a few times.

Kinda pointless, besides the "oooh" factor, if you ask me.

Waingro
09-03-2008, 8:24 AM
It would be cool if the casings came out of the magwell.

Young Version
09-03-2008, 8:28 AM
It would be cool if the casings came out of the magwell.

I'm pretty sure they do.

ChrisXD45T
09-03-2008, 8:29 AM
It would be cool if the casings came out of the magwell.
They do.
At least on the version that I saw.

ChrisXD45T
09-03-2008, 8:31 AM
Probably good for people who don't live near an outdoor range; I imagine they can shoot this at an indoor pistol range.

bobfried
09-03-2008, 8:33 AM
It would be cool if the casings came out of the magwell.

It does.

This has been around for several years now, started as a Rhineland Arms project than was sold to a different company when they folded under. I played with the production version at this year's SHOT Show and thought it was interesting. It is however HEAVY and I mean much heavier than I though was possible. Not sure why anyone would want one though since a PS-90 is lighter, shorter and more compact than an AR-57. Even the SBR'ed version of one still cannot compete with just a regular PS-90, once we start talking about an SBR'ed PS-90 it's a moot point.

ChrisXD45T
09-03-2008, 8:36 AM
It does.

This has been around for several years now, started as a Rhineland Arms project than was sold to a different company when they folded under. I played with the production version at this year's SHOT Show and thought it was interesting. It is however HEAVY and I mean much heavier than I though was possible. Not sure why anyone would want one though since a PS-90 is lighter, shorter and more compact than an AR-57. Even the SBR'ed version of one still cannot compete with just a regular PS-90, once we start talking about an SBR'ed PS-90 it's a moot point.
I bet it beats the PS90 in price though.
However, that's still not enough to sell me on it.

civilsnake
09-03-2008, 10:32 AM
I bet it beats the PS90 in price though.
However, that's still not enough to sell me on it.

Yeah, the website says MSRP is $699, so if you already have the a quality lower assembly, this could save you significant money over the PS90. Of course, the downside is that you don't get the functionality of the PS90.

I'd say it might be a good buy if you already have a PS90 and FiveSeven and want something closer to a full rifle that can share ammo.

MrSlippyFist
09-03-2008, 10:41 AM
I've got one. I like it so far.

http://i77.photobucket.com/albums/j54/slippyfist_photos/Misc/100_0642.jpg

civilsnake
09-03-2008, 10:59 AM
I've got one. I like it so far.

http://i77.photobucket.com/albums/j54/slippyfist_photos/Misc/100_0642.jpg

Is that an A2 flash hider on there?

Infidel
09-03-2008, 11:00 AM
Kinda Cool...I probably wouldn't use it unless SHTF my AR is already expensive enough to shoot.

MrSlippyFist
09-03-2008, 11:01 AM
Is that an A2 flash hider on there?

Nope. A2 muzzle break.

pidooma
09-03-2008, 11:17 AM
One vendor had them at the Big Reno Show. It looked pretty good, but was definitely heavy.

what2be
09-03-2008, 11:18 AM
Probably good for people who don't live near an outdoor range; I imagine they can shoot this at an indoor pistol range.

Dont know about your range, but mine said hell no, they would go right out the back wall. Too much velocity.

PIRATE14
09-03-2008, 11:24 AM
We've sold a few but I haven't had the chance to run one out in TX yet......

Another option available for the AR.......:43:

BroncoBob
09-03-2008, 11:30 AM
That rifle is sick looking. With the U-15 it's really a nice set up. Is the mag a 10 rounder?

MrSlippyFist
09-03-2008, 11:50 AM
That rifle is sick looking. With the U-15 it's really a nice set up. Is the mag a 10 rounder?

Yeah. Luckily I had a friend at the 57forum who had the plastic insert that makes those mags ten rounders. He was nice enough to ship me the complete 10 rounder after I had a 50 sent to him.

I contemplated fixing the mag to the upper some how, but it would be near impossible to load without removing it, so I went with the U15.

MrSlippyFist
09-03-2008, 11:53 AM
One vendor had them at the Big Reno Show. It looked pretty good, but was definitely heavy.

That's weird, I didn't think it was all that heavy. The only other upper I have is a 20" 5.56, which is obviously heavier so I didn't notice.

One thing about the AR57 upper is the bolt really likes to slide out and land on things that are breakable.

trinydex
09-03-2008, 1:25 PM
so they make something like this... but they don't make a p90 in 9mm?

civilsnake
09-03-2008, 1:41 PM
so they make something like this... but they don't make a p90 in 9mm?

Well, the P90 was designed around that 5.7mm round. FN specifically wanted something with different ballistic characteristics. And there are already a significant number of small 9mm SMGs and carbines out there.

ChrisXD45T
09-03-2008, 2:17 PM
Dont know about your range, but mine said hell no, they would go right out the back wall. Too much velocity.
Yeah, not all will allow it, a small range with a weak backstop is probably a no-go because most buy into the lore of the 5.7 and wont take a chance. Better safe than sorry.
SS197 is just lead ball, 40gr.
Out of a 16 inch barrel it's moving maybe 2,350 + fps. I doubt it would penetrate a wall at a range.

MrSlippyFist
09-03-2008, 2:37 PM
so they make something like this... but they don't make a p90 in 9mm?

P90 in 9mm?? 5.7x28 was designed to defeat body armor.


Just get an MP5

trinydex
09-03-2008, 2:47 PM
well i was just thinkin' that it's a huge project/effort to make a top feeding 57ar... it it at all that hard to make the p90 in 9mm? but points taken... mp5/ump conversion.

what else is there? besides uzi.

MrSlippyFist
09-03-2008, 2:48 PM
well i was just thinkin' that it's a huge project/effort to make a top feeding 57ar...

Not really. It's surprisingly simple. You should check them out if you have the slightest interest.

trinydex
09-03-2008, 2:50 PM
how proliferated do you guys speculate the 57 round is going to get with fn selling rights to that factory?

MrSlippyFist
09-03-2008, 2:52 PM
Not a whole lot of manufacturers are lining up to make platforms that will fire 5.7x28. The FsN pistol and PS90 have a cult following of sorts, and I don't see any other weapons systems outside of this AR and maybe a small bolt gun.

saki302
09-03-2008, 3:51 PM
Firing Line Burbank allows SS197 5.7 ammo- I think they will allow it in the carbine too.

If anything, it probably penetrates less into the grave backstop because the bullet would destroy itself in a couple of inches.

I've been meaning to drop a few rounds of SS195 for Bear to test, but I haven't had time to shoot for a while. I remember when I had time to make good use of an annual membership (sigh).

-Dave

AYEAREFIFTEEN
09-04-2008, 9:41 AM
Firing Line Burbank allows SS197 5.7 ammo- I think they will allow it in the carbine too.

Firing Line however is not OLR friendly. I talked to a couple guys they have working the counters and asked if I could bring in my Rock River 9mm OLR and they said no. One guy at the counter said "We (meaning the employees) are OLR friendly but the range is not."

CHS
09-04-2008, 11:10 AM
When will someone make me a 5.7x28 bolt-action gun??? :(

MrSlippyFist
09-04-2008, 11:14 AM
FN has been talking about it for quite awhile

Black Majik
09-04-2008, 11:21 AM
Firing Line however is not OLR friendly. I talked to a couple guys they have working the counters and asked if I could bring in my Rock River 9mm OLR and they said no. One guy at the counter said "We (meaning the employees) are OLR friendly but the range is not."

The Burbank one?

The HB FL lets me bring in my AR .22 with no problems.

AYEAREFIFTEEN
09-04-2008, 12:24 PM
The Burbank one?

The HB FL lets me bring in my AR .22 with no problems.

Interesting...

My first trip there about 8 years ago they tried to charge me about 50% more than I should have paid. That resulted in a 15 minute arguement and eventually paying the correct price. The second time around the attitude from the counter folks was so unbelievably bad that I decided not to return for a long time. (You know the kind of attitude people have when they are given the tiniest most insignificant ammount of power and they turn into a facsist dictator.)

Things seemed to get better after going with a friend of mine a couple times the last two months. Perhaps I talked to one of the new $7.50 an hour facsists.

saki302
09-04-2008, 5:49 PM
I don't think the Burbank firing line cares about OLL as long as it's legal. I don't know who you got at the counter.
We shot a MMG'ed MP5 clone there with no issues. Talk to Bear308- he's the one to speak with about FL Burbank issues.

-Dave

DrunkSkunk
09-16-2008, 11:57 PM
I've got one. I like it so far.

http://i77.photobucket.com/albums/j54/slippyfist_photos/Misc/100_0642.jpg

Guess using this upper in my featureless build would let me use my 50 round mags but I really don't see the point of this round in the AR platform.

phsieh10
09-17-2008, 3:08 AM
I think the PS90 came out after 2000. So it would be hard to explain how you had 50round mags before 2000. Unless you had a P90.

DrunkSkunk
09-17-2008, 3:29 AM
I think the PS90 came out after 2000. So it would be hard to explain how you had 50round mags before 2000. Unless you had a P90.

PS90 came out in 2005 actually, the p90 has been around since the late 80's.

DrunkSkunk
09-17-2008, 4:04 AM
Like I said I still don't see the point of shooting a 55gr 5.7x28 at 1000 fps when your regular ar15 gets 3,700fps off the same exact projectile.

Full Clip
09-17-2008, 8:07 AM
The only point I see is "50-round mags," though I think it's a pretty slick setup.

MrSlippyFist
09-17-2008, 8:25 AM
Like I said I still don't see the point of shooting a 55gr 5.7x28 at 1000 fps when your regular ar15 gets 3,700fps off the same exact projectile.

1000 fps? Where did you hear that?

Granted, the factory ammo is weak, but easily twice that. SS195 around 2000 fps, SS197 around 1700-1800 fps. The SS198LF should be a bit higher, but I haven't seen any chrony data on it yet. Most of Elite Ammunition's loads are around 2500 fps and their new developments with barne's TSX 53 grain will be around 2800.

Over at 57forum we are in the process of restoring all the old data after a server crash, and I couldn't find specifics that aren't in the open forum, But I assure you, only subsonic loads would be anywhere near that low.

Here's the recommended loads by ramshot and associated velocities.

http://www.ramshot.com/powders/loadguide/2007/5.7x28FN%20vs%20Ramshot%20only.pdf

And the same by Accurate:

http://www.accuratepowder.com/data/5.7x28%20FN%20vs%20Accurate%20only.pdf

I agree that a regular AR15 would be better suited for many situations, but since I can't have a PS90 for under $2300 in the PRK, this AR57 upper is a much better alternative. And since I already reload 5.7x28, this upper will let me test hotter loads that might explode the pistol.

6172crew
09-17-2008, 11:24 AM
The 5.7 round was to take over the role the 9mm had as a close quarters/PDW type round so I dont know why anyone would make a P90 shoot 9mm.:confused: I have a SBR'd Ps90 and I think it would work better in the home defense role than my mini Uzi...cept the Uzi is full auto.:D

The 5.7 round is wicked fast and will frag up close so it does have its place. The prices of ammo have stayed around $20 a box of 50 so they are close to 5.56 ammo but unlike the milspec round it shouldnt go through the rest of the house if you miss your target. The 62g milspec ammo seems overkill in a home IMO.