Samson Evo KeyMod Rail 12″ AR-15 HandGuard (KM-EVO-12-37)
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Samson Evo KeyMod Rail 12″ AR-15 HandGuard (KM-EVO-12-37)

$194.75- Add to Cart to see the price
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10 in stock


Features of the Samson 12” KeyMod Evo Rail

12.37” Overall Length

6061-T6 Aluminum Construction

Full Length Top Picatinny Rail

1.8” Outside Diameter

1.56” Inside Diameter

Compatible w/ Mil-Spec Barrel Nut (Not Included)

Compatible w/ Most Gas Piston Systems

Free-Float Design



Overview of the Samson Evo KeyMod 12” Rail AR-15 HandGuard

The Samson KeyMod Evo rail was brought into product at the request of several SOCOM members.  The reason for the request was because the Samson Evo Rail line is a quality product that performs as advertised and is extremely durable.  This handguard gives you KeyMod modularity and also has an internal diameter that is large enough to house several different suppressors.  The Samson Evo KeyMod handguard is an excellent value at this low price that it is offered at. You will be hard pressed to find a better rail for less cash.


Accessory Attachment

The Samson Keymod Evo Handguard provides you with a wide variety of accessory mounting options.  Most notable, this rail has KeyMod accessory mounting slots at the 3, 6, and 9 o’clock position.  These KeyMod mounting slots allow you to mount your KeyMod compatible accessories directly to the rail system. 


In addition to the KeyMod mounting slots, the 12” KeyMod Evo Rail also has the Samson manufacturing original Evo S-cuts.  These S-cuts allow you to offset mount your evo compatible accessories.


The top section of this rail system has an integrated full length Picatinny rail section.  This rail section, when mounting to your flat top upper receiver, will run continuously with the upper receiver rail section.  This provides you with a excellent mounting surface for optics, such as night vision equipment, or other Picatinny accessories, such as back-up iron sights.



Samson manufacturing is a no-nonsense get it done type of company.  This attitude shows through in their product line.  The KeyMod Evo Rail system has several functional features that work with the shooter.  To make mounting easier, the rail has integrated anti-rotation tabs.  These tabs index on the upper receiver to make for a proper alignment between the upper receive and the rail.  Attaining the proper alignment is crucial if you are mounting optics or a front sight on you rail.  Also after installation, these tabs help to prevent any rotation for occurring during hard use.


Additional information

Weight2 lbs
Part #



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