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-   -   RRA's new Piston Driven System here. (http://www.firearmstalk.com/forums/f20/rras-new-piston-driven-system-here-31280/)

canebrake 09-03-2010 05:49 PM

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/ -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

CHLChris 09-03-2010 05:59 PM

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!

shipwreck 09-03-2010 06:09 PM

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...

canebrake 09-03-2010 06:15 PM

Quote:

Originally Posted by CHLChris (Post 343887)
I love the flat top rail that extends unbroken from upper receiver into the handguard!

You mean like this?

http://i695.photobucket.com/albums/v...%20gun/1ft.jpg

http://i695.photobucket.com/albums/v...olts6940-2.jpg

The Colt LE6940

Dillinger 09-03-2010 06:15 PM

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. :eek:

Quote:

Originally Posted by CHLChris (Post 343887)
With so many proprietary parts in the upper half, doesn't that present a problem for future mods or repairs?

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

canebrake 09-03-2010 06:32 PM

Quote:

Originally Posted by Dillinger (Post 343903)
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

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/products/rra_lr1222v.pdf

Dillinger 09-03-2010 06:37 PM

Quote:

Originally Posted by canebrake (Post 343908)
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/products/rra_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. :eek:

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. :confused:

canebrake 09-03-2010 06:44 PM

The PDS Pistol is pretty sweet too!

http://i695.photobucket.com/albums/v...n/rpds10-1.gif

Rock River Arms: NEW! RRA PDS Pistol

http://www.rockriverarms.com/images/products/rra_lp2110.pdf

CHLChris 09-04-2010 04:59 AM

EOP?

End of program? Like the highest form in an evolution?

Enemy of the People?
Emergency Oxygen Pack?
Engineering Operational Procedure?
Edge of Panic?

Quentin 09-04-2010 06:49 AM

Quote:

Originally Posted by CHLChris (Post 344245)
EOP?

End of program? Like the highest form in an evolution?

Enemy of the People?
Emergency Oxygen Pack?
Engineering Operational Procedure?
Edge of Panic?

:D

IDK either... :o


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