Posted on January 7th, 2014 by ar15news
ALG Defense (sister company to Geissele Automatics) will be introducing multiple products at SHOT Show 2014; including the new free-floating Ergonomic Modular Rail (EMR) system. The EMR was developed as a cost-effective, lightweight, ergonomic, and modular option for the M4 carbine and all mil-spec AR-15. The EMR package starts at just $135 and will be available in 10″, 12″, and 13″ lengths. The EMR will be initially introduced with black anodizing; however, grey will also be an option.
The EMR provides complete modularity with easy to install accessory rails that can be secured at both the 45 and 90 degree quadrants; ideal for shooters that need to mount their sights, lights or lasers at a 45 degree offset. Accessory rails are secured to the EMR via steel slide nuts that can be replaced if lost or damaged by cross threading. By screwing the accessory rails directly into steel and not the aluminum of the EMR, the attachment method is much stronger and resists loosening due to vibrations. Additionally, the EMR features integrated quick disconnect (QD) swivel attachment points so that you don’t need to add an additional rail or QD mounts; this further reduces overall weight of the system.
Strength and rigidity
The EMR’s strength and rigidity comes from the materials used in its construction. The EMR is machined from an extrusion made from aircraft grade aluminum giving it a superior strength to weight ratio. The EMR is mounted to the upper receiver via a 2.25″ barrel nut that is machined from aircraft grade aluminum and hard coat anodized for a durable surface. Included with the EMR is a proprietary ALG EMR barrel nut wrench. The rail is secured to the barrel nut via six mounting bolts which also allows for easy removal and reattachment.
The EMR allows the shooter to comfortably grip the rail by removing the four sharp and jagged M1913 rails and utilizing easy to install accessory rail that are 3D machined to fit the contour of the EMR. Both traditional hold and forward grip shooters will appreciate the ergonomic design of the EMR. Starting at the 12 o’clock position, the rail features a rounded tower in which shooters can do a thumbs over grip or the tower can be used as an indexing point. Moving along the 3, 6, and 9 positions, the rail has a lengthwise grooves and relief cuts that help the shooter maintain a positive grip on the handguard.
The weights provided below include the proprietary EMR barrel nut minus the weight of the stock barrel nut. Weights for the 13″ EMR will be forthcoming.
10” EMR (No ACCY Rails Attached) = 7.68oz
10” EMR (With Co-Witness Only Attached) = 10.1oz
10” EMR (With All ACCY Rails Attached) = 12oz
12” EMR (No ACCY Rails Attached) = 8.96oz
12” EMR (With Co-Witness Only Attached) = 11.68oz
12” EMR ( With All ACCY Rails Attached) = 13.28oz
Again, this complete rail system, including barrel wrench and allen key, retails starting at $135.
Keep an eye on the ALG Defense FB page for additional information as these products become available for purchase.