With the new keymod and m-lok handguards available there has to be new designs that fit the Adams Arms standard piston system.

I would like to get an updated  list going. Hands on and picture verification is best .



I called Seekins Precision and they said their MCSR V2 Keymod will work with Adams Arms, see the barrel nut has been drilled out for the op rod spring nut.

http://www.seekinsprecision.com/parts-and-accessories/handguards/mcsr-v2-mod-rail.html


RAINIER ARMS-  Evolution keymod, works the same as the Samson Evolution with a different look.

http://www.rainierarms.com/rainier-arms-evolution-free-float-system-9-0-keymod

RAINIER ARMS  -- FORCE RAIL - Keymod.    As used on their Force piston upper.

http://www.rainierarms.com/rainier-arms-forcetm-free-float-system-9-0


FORTIS-- REV  keymod - As listed in the Adams Arms faq.

http://fortismfg.com/index.php?route=product/category&path=59_71

FORTIS -- REV II   keymod and mlok- Listed on the Fortis site as "piston Compatible.

http://fortismfg.com/index.php?route=product/category&path=59_75

SAMSON MANUFACTURING  Evolution keymod

http://www.samson-mfg.com/category/EVOLUTION_KEYMOD.html

http://www.adamsarms.net/faq#qa1

 

Figured this is worth adding here.

The Free Floating or Drop In rails available on our website
Samson Star-C (carbine only)
Samson Star-C- EX-P (carbine only)
Samson Star-M (mid only)
Samson Star-M- EX-P (mid only)
Samson Star-R (rifle only)
Samson Star-4 (pistol only)
Samson Star-4-DI (pistol only)
Samson Star-4-EX (pistol only)
Samson Star-DI (pistol only)
Samson Evolution Series 4 EX (pistol only)
Samson Evolution Series 7 (carbine only)
Samson Evolution Series 7 EX (carbine only)
Samson Evolution Series 9 (mid only)
Samson Evolution Series 9 EX (mid only)
Samson Evolution Series 12.37 (rifle only)
Daniel Defense Standard Length Omega Rails
Daniel Defense Standard Length Lite Rails
Daniel Defense Standard Length Omega X Rails
Daniel Defense 9.5 FSP Lite
Daniel Defense 12.5 FSPM Lite
Daniel Defense EZ Car 7.0
Ergo Grip AR Z Float
Ergo Grip AR Z Rail
Midwest Industries Gas Piston Two Piece Free Float Forearm
Arms #50 Bi-Level S.I.R. System
Magpul MOE handguards (most recent version cut to accept gas pistons)
Troy Industries Drop In Carbine (Mid length and Rifle length require removal of handguard tension screw and arm)
Troy Industries TRX Battlerail Extreme 9" and 7.2"
PRI Gen III Delta Carbon Fiber Forearm
Newtown Firearms Modular Free Floating Carbine Rail
The modified M4 style handguards provided with our standard system
Fortis REV™ Free Float Rail System
Odin Works KMod Forend (XLP - slight modification to barrel nut)
Odin Works Sport Forend (XLP - slight modification to barrel nut)
Yankee Hill SLR
Troy Industries VTAC Alpha Rail
Midwest industries SS/SSK/SSM. XLP (barrel nut modification

In your search, have you come across any carbine length compatible rails that are longer than 7" on the top rail?

I am looking for a 12" rail that has a void in the top rail section (which the AA piston block will fill) and then continues on to the end of the rail.

No i havent. but look at the Samson Star rail below its a two piece design and  may  work with the right gas block but it would be hard to get to the gas adjustment knob unless you mill out the top rail, and would also be hard to remove the regulator out the front for cleaning..I included the new Huldra rifle just to show the possibilities of using the XLP system.

http://www.huldraarms.com/rifles/product_f13066792cf3/

http://www.samson-mfg.com/mm5/merchant.mvc?Screen=PROD&Store_Code=SM&Product_Code=STAR-CXR&Category_Code=STAR_GAS_BLOCK_CUTOUTS

Primary Arms has a line of Keymod FF rails made by Seekins.
It uses the Seekins barrel nut with the counterbore for the op rod spring.
I bought a 12" rail (for the $99 intro price) when they first came out, and it's well made (did I mention they're made by Seekins) and light weight.

Joe

thanks for posting this, I have a magpul handguard but I was looking for a free float for my adams arms midlength. this helps a lot.

does anyone have any pictures of their AA rifle with a free float?