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  • HK416 Standard Length 9″ Free Floating Quad Rail System, Gas Reg Cut-Out for use with Adjustable Gas Block

HK416 Standard Length 9″ Free Floating Quad Rail System, Gas Reg Cut-Out for use with Adjustable Gas Block


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About Product

Heckler and Koch HK416 / MR556 9″ Free Floating Quad Rail System for use with Adjustable Gas Block – Factory New

This is a factory original, genuine HK part manufactured in Germany.  Heckler and Koch is internationally recognized for their high quality products, commitment to excellence, and their unparalleled, innovation.  Made with HK’s “No Compromise” dedication to quality, be assured you are getting the highest quality materials machined to precise specifications, flawless and resilient expert finishing to yield an impeccable product with immaculate fit and stability.

This 9″ Heckler & Koch  Free Floating Rail System (FFRS) is highly desired for use with Heckler and Koch adjustable gas blocks (usually) installed on the HK416’s with a 10.4″, 14.5″, 16″ or 20″ barrel. The gas regulator cut-out window on the forward right-side of the handguard allows for unobstructed, easy access to the gas block for quick gas regulator adjustments. These handguards feature the standard MIL-STD-1913 Picatinny rails around the circumference of the fore-end. (Located at 12, 3, 6, 9 o’clock).  T-Markings are featured on the top rail only and are numbered from 18-36.  .

These genuine article, Heckler & Koch 416/MR556 free-float handguards are sourced from NEW H&K stock.  These particular handguards are truly NEW STOCK and have never been installed or disassembled.

The handguard is incomplete for installation as they do NOT include a barrel nut, rail-system locking screw (HK part# HK00226) or the shaped spring (HK part# HK00122) for the locking screw.


Manufacturer Heckler & Koch
Part HK416 Free Floating Rail System, Quad Rail with Gas Reg Cut-Out
Length 9” / 22.86cm
Material Aluminum
Finish Black Anodizing
Free Float Yes
Weight 0.75 lbs. / 12 ounces / 340.1 grams
T-Markings Yes, top (12 o’clock) rail only, numbered 18 – 36
Platform Compatibility HK416 Variants, MR556A1
Barrel Length Compatibility 10.4″, 14.5″, 16″ or 20″
Special Feature Gas regulator cut-out window, compatible with adjustable HK416 gas blocks
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