Would a longer barrel increase accuracy for the 5.7 round? Could the Palmetto 5.7 Rock function with a longer barrel?
I don’t see any reason it wouldn’t work but because it would make the Rock extremely cumbersome for using as a carry weapon, that it’s commercial desirability would not be sufficient to make anyone manufacture it.
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Weight would eventually be prohibitive, but not sure what length that would be at.
I’d buy an overlong barrel for it. 
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I would agree it should function, if not better. Never considered the Rock as a carry gun myself, more of a plinker. Maybe they will come out with a compact model, but accuracy and velocity would likely take a hit.
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More of a plinker?
I too love to set money on fire.
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The whole reason they developed the 5.7x28 was as a PDW cartridge and the original 5.7x28 pistol, the Fn Five Seven was designed for it. I do not see many purchasers buying a 5.7x28 handgun for plinking which is why I believe the demand for a longer barreled version would not be commercially attractive. If you want a 5.7x28 plinker, get an AR57. Either an SBR or 16” barrel version and a 50 round magazine. Plink to your wallets content at $30 a box of 50 ( AAC 40 grain V Max ) plus shipping.
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Efk makes 7 inch five seven barrels sometimes. @Buffman-RANGE has one I think.
I tried to get a used one a while back but no joy.
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Only the 5.4” barrels are currently listed on the EFK website. Not cheap either at $369 plus shipping.
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Yep they only make them sometimes.
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Go for the record. I would put a 12.5 inch barrel on just so i could say i did!! Then i would use it as my EDC just to prove i could.
Obviously im joking but im sure someone has put a longer barrel one. Ive seen a few pics that were questionable. If you do go with a longer barrel keep us posted.
And remember anything is possible if your willing to see it to the end!!
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I was thinking of the longer barrel as an aftermarket product. Replacement Rock 5.7 barrels are $90 on PSA ($100 threaded). I would pay $150-200 for a 7 inch barrel, if only to compare. And if it is any better, it would make a good camping gun / truck gun.
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Considering the only aftermarket barrel manufacturers for the FN Five Seven Threaded Barrels ( EFK & Jarvis ) each charge more than $350 for a barrel, I don’t believe there would be enough demand for a Rock 7 inch barrel for any manufacturer to make such a barrel and if they did, it would cost at least as much as the Five Seven barrels do.
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I disagree. The five seven is a 1300 dollar pistol to start with, and the efk and Jarvis threaded barrels have been pretty much the only option for 20 years.
The efk is a threaded match grade barrel with a mirror polish on the chamber, a 1/2x28 thread adapter (from the factory euro style threading), and a captive recoil spring surrounding it, making it much more complex to produce. I don’t think a rock barrel would be nearly as complex or frankly, nice.
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Agreed, but do you believe there would be enough demand for a 7 inch Rock barrel for any manufacturer to offer one ?.
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Dismissing the Rock as a plinker is ludacris. It’s a great plinker. Low recoil, high capacity, easy to shoot with, extremely comfortable to hold, fun. It’s everything a plinker should be. YES, the rounds are expensive, so it certainly IS an expensive plinker. There’s no argument there.
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This is a very interesting thing to think about. The line, if it exists at all, is super blurry as to what a plinker is.
The Barrett 50 cal is arguably a plinker. There is no civilian use case for 50 bmg that I can think of. It’s only used to have fun on the range.
But do easy shooting guns like the Ria 5.0 make it a more of a plinker than a carry gun vs other 9mm?
When me and my friends go shooting, the funnest gun we shoot is a little 9mm derringer. Definitely not a plinker, but thats what we use it for. None of us would carry that thing.
I guess it all comes down to how the individual uses it.
Pretty sure the Secret Service doesn’t view it as a plinker.
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I’m sure a plinker is any weapon you enjoy shooting a lot. The Rock makes a great plinker. However, when someone is considering the purchase of a weapon for plinking, obviously both the cost of the weapon and the cost and availability of ammo are important considerations.
Since the Rock, while not as expensive as a Five Seven or an AR57 still chambers the 5.7x28, it is pricy to fire a lot of rounds and they are not normally available at your LGS.
The economy being what it is, will enough Rock owners want to plink with their Rocks with a 7 inch barrel to make it profitable enough for a manufacturer to produce it at a cost owners would be willing to pay ?. I have my doubts, but have been wrong many times before.
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I’d buy one but wouldn’t pay more than $150. I would prefer to pay $100 for it.
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Sure they do
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