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 09-03-2010, 05:49 PM | #1 | I'm always 10-8 Join Date: Jan 2009 Location: 150 miles NE of Sloppy Joe's Bar, in the "GunShine" State Posts: 17,399 |  RRA's new Piston Driven System here.
From The Shooting Wire
September 3, 2010
Rock River Announces PDS Carbines
(Colona, IL)...Rock River Arms has the reputation for producing top quality AR15s. What sets Rock River Arms apart from the competition is their versatility to produce and innovate weapons to such rigorous specifications, all built with the same focus on providing the finest fit, finish and function at a reasonable price. Rock River Arms started engineering a piston system over two years ago and are now introducing that system. The new PDS (Piston Driven System) Carbine is reliable, every time.
The Rock River Arms PDS Carbine and Pistol are the first of a new generation of firearms employing Rock River Arms' patent-pending Piston Driven System (PDS). Utilizing a purpose-designed bolt carrier, an adjustable gas piston and an over-the-barrel spring and guide rod arrangement, the Rock River Arms Piston Driven System is able to completely do away with the traditional recoil system, making for an extremely accurate, fast-handling and versatile weapon platform.
The new PDS Carbine has a full length top mounting rail from the rear of the receiver to the regulator housing, allowing flexible placement of numerous optics, lights, lasers and other accessories. The RRA side-folding 6-position Tactical CAR stock features a receiver extension storage compartment that nicely houses extra batteries for optics. The PDS Carbine hosts an injection molded handguard that is ribbed for a sure grip. The folding ambidextrous, non-reciprocating charging handles may be used independently or in unison to charge the RRA PDS Carbine. The RRA two-stage trigger made its way onto the long list of proven features aiding in accuracy. The two position adjustable regulator can be repositioned for reliability for versatility in ammunition usage and is conveniently located on the right side of the regulator housing.
The RRA PDS Carbine Specifications:
Caliber: 5.56 NATO Chamber for 5.56mm & .223 cal.
Upper: Proprietary, with Extended Top Rail
Charging Handle: Proprietary Ambidextrous Non-Reciprocating
Barrel: 16" Chrome Moly, 1:9 twist
Muzzle Device: A2 Flash Hider/ ½-28 Thread
Trigger: RRA Two Stage
Pistol Grip: Hogue Rubber Pistol Grip
Handguard: Injection molded, Ribbed
Buttstock: RRA Side-Folding 6-Position Tactical CAR Stock with Receiver Extension Storage Compartment
Weight: 7.4 pounds
Length:stock unfolded/Extended 37.75 inches
Length:stock unfolded/retracted 34.5 inches
Length:stock folded 26 inches
Includes: 1 - magazine, Owners Manual, Warranty
MSRP: $1685
For more information on the complete line of Rock River Arms products, contact: Rock River Arms, 1042 Cleveland Rd, Colona, IL 61241 Phone: (309) 792.5780 Fax: (309) 792.5781
Rock River Arms: NEW! RRA PDS Carbine__________________ .
 .. Colt 11101110111..MEMBER: FAAM, NRA, GOA, DAV, USSV, SAE
Colt, everything else is stamp collecting! - cane
When life gives you lemons, squeeze the juice into your enemies open wounds. | 
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| 09-03-2010, 05:59 PM | #2 | I 'C' a Kimber on my keys Join Date: May 2009 Location: Portland, Oregon Posts: 1,713 |
With so many proprietary parts in the upper half, doesn't that present a problem for future mods or repairs?
I love the flat top rail that extends unbroken from upper receiver into the handguard! __________________
.45 acp, 9mm, .38 spl +p, .380 acp, .22 long rifle
12 gauge, 5.56x45mm NATO, .30-30 Win
1 Peter 3:15-16 "But in your hearts set apart Christ as Lord. Always be prepared to give an answer to everyone who asks you to give the reason for the hope that you have." | |
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| 09-03-2010, 06:09 PM | #3 | Senior Member Join Date: Jul 2007 Location: Beretta City, TX Posts: 185 |
I have a RRA catalog with it shown in the front of the catalog. I was wondering when it was actually going to be released... | |
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| 09-03-2010, 06:15 PM | #4 | I'm always 10-8 Join Date: Jan 2009 Location: 150 miles NE of Sloppy Joe's Bar, in the "GunShine" State Posts: 17,399 |
Quote:
Originally Posted by CHLChris
I love the flat top rail that extends unbroken from upper receiver into the handguard!
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You mean like this?
The Colt LE6940 __________________ .
.. Colt 11101110111..MEMBER: FAAM, NRA, GOA, DAV, USSV, SAE
Colt, everything else is stamp collecting! - cane
When life gives you lemons, squeeze the juice into your enemies open wounds. | |
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| 09-03-2010, 06:15 PM | #5 | Call Me Doug Join Date: Mar 2008 Location: It's because I actually HAVE those skills! Posts: 21,258 |
Interesting. They went with a forward grip charging handle like you see on the H&K series ( MP / G ). Unless someone is already at work on a new foreend, I hope you like the "rubber, ribbed for comfort" grip that comes with it. 
Quote:
Originally Posted by CHLChris
With so many proprietary parts in the upper half, doesn't that present a problem for future mods or repairs?
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It's still early in this progression to something that wasn't really needed. We will have to see how many of the outlet houses jump on board with new "custom" parts for this type of unit. But, in a word, Yes to your question. 
JD __________________ "as for my Sword & Spear we will serve the throne, but NEVER that man who sits upon it" - Achilles - Warrior of Warriors
Quote:
Originally Posted by doctherock
Dillinger didn't have to let me try Cammenga Mags before I bought them; but he is a man of great character & a man who's word to me now is a good as gold. If he recommends it I know its good stuff.
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ΜΟΛΩΝ ΛΑΒΕ! | |
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| 09-03-2010, 06:32 PM | #6 | I'm always 10-8 Join Date: Jan 2009 Location: 150 miles NE of Sloppy Joe's Bar, in the "GunShine" State Posts: 17,399 |
Quote:
Originally Posted by Dillinger
Interesting. They went with a forward grip charging handle like you see on the H&K series ( MP / G ). Unless someone is already at work on a new foreend, I hope you like the "rubber, ribbed for comfort" grip that comes with it. JD
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Notice the height of the rail? It incorporates an over-the-barrel spring and guide rod arrangement. This completely eliminates the traditional buffer/spring recoil system.
I'm surprised they don't tout it as an EOP.
http://www.rockriverarms.com/images/...ra_lr1222v.pdf__________________ .
.. Colt 11101110111..MEMBER: FAAM, NRA, GOA, DAV, USSV, SAE
Colt, everything else is stamp collecting! - cane
When life gives you lemons, squeeze the juice into your enemies open wounds. | |
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| 09-03-2010, 06:37 PM | #7 | Call Me Doug Join Date: Mar 2008 Location: It's because I actually HAVE those skills! Posts: 21,258 |
Quote:
Originally Posted by canebrake
Notice the height of the rail? It incorporates an over-the-barrel spring and guide rod arrangement. This completely eliminates the traditional buffer/spring recoil system.
I'm surprised they don't tout it as an EOP.
http://www.rockriverarms.com/images/...ra_lr1222v.pdf |
Yeah, I did notice and it's not exactly "new" technology. I believe there is at least one AR "pistol" maker that does a similiar thing.
I guess I don't see the "really great, gotta have it at any cost, screaming benefit" unless you are going to be fighting, say, mud monsters in the Bizarro World of the Sleestak.
All the chatter is going to be in front of and over your trigger hand and you have an underhand, palm up grip on the fore-end. Recoil, presumably, is going to be up-up and away as you sustain heavier firing cycles.
I guess I am just old, or don't understand the platform or something.  __________________ "as for my Sword & Spear we will serve the throne, but NEVER that man who sits upon it" - Achilles - Warrior of Warriors
Quote:
Originally Posted by doctherock
Dillinger didn't have to let me try Cammenga Mags before I bought them; but he is a man of great character & a man who's word to me now is a good as gold. If he recommends it I know its good stuff.
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ΜΟΛΩΝ ΛΑΒΕ! | |
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| 09-03-2010, 06:44 PM | #8 | I'm always 10-8 Join Date: Jan 2009 Location: 150 miles NE of Sloppy Joe's Bar, in the "GunShine" State Posts: 17,399 |
__________________ .
.. Colt 11101110111..MEMBER: FAAM, NRA, GOA, DAV, USSV, SAE
Colt, everything else is stamp collecting! - cane
When life gives you lemons, squeeze the juice into your enemies open wounds. | |
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| 09-04-2010, 04:59 AM | #9 | I 'C' a Kimber on my keys Join Date: May 2009 Location: Portland, Oregon Posts: 1,713 |
EOP?
End of program? Like the highest form in an evolution?
Enemy of the People?
Emergency Oxygen Pack?
Engineering Operational Procedure?
Edge of Panic? __________________
.45 acp, 9mm, .38 spl +p, .380 acp, .22 long rifle
12 gauge, 5.56x45mm NATO, .30-30 Win
1 Peter 3:15-16 "But in your hearts set apart Christ as Lord. Always be prepared to give an answer to everyone who asks you to give the reason for the hope that you have." | |
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| 09-04-2010, 06:49 AM | #10 | Supporting Member Join Date: Apr 2010 Location: Boise, Idaho Posts: 2,458 |
Quote:
Originally Posted by CHLChris
EOP?
End of program? Like the highest form in an evolution?
Enemy of the People?
Emergency Oxygen Pack?
Engineering Operational Procedure?
Edge of Panic?
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IDK either...  | |
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