When you want to build a functional, tactical AR-15, you need AR Handguards & Forends to complete the build. The 9.3 inch MK4 Super Modular Rail system from Geissele features a slim, lightweight design with a free-floating handguard that is designed for regular use. With Picatinny rails and M-LOK connections, you have plenty of options to mount iron sights, sport optics, foregrips, and more, letting you customize the weapon for your unique needs. This design also comes with Geissele’s proprietary 2.25-inch barrel nut design, which increases rigidity between the rails and receiver. Since it has more surface contact than other barrel nuts, you don’t have to worry about the system loosening over time. This ensures your optics stay in the same position, increasing your accury. Specifications for Geissele 9.3in Super Modular Rail MK4 M-LOK: Manufacturer: Geissele Color: DDC Finish: Type III Hardcoat Anodized Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Handguard Length: 9.3 in Handguard Type: Free-Float Gun Rail: Picatinny Included Accessories: Standard Inner Diameter: 1.35 in Outer Diameter: 2.11 in Height: 2.4 in Mount Type: M-LOK Country of Origin: USA Quantity: 1 Features of Geissele 9,3inch Super Modular Rail MK4: Type III Hardcoat Anodized Finish 2.25-inch Barrel Nut Design Free-floating Handguard Picatinny Rails M-LOK Connections Package Contents: Geissele Super Modular Handguard Rail MLOK MK4 9.3in NOTE: IF THIS IS YOUR FIRST TIME PURCHASING A GEISSELE AUTOMATICS RAIL, YOU WILL NEED TO PURCHASE A BARREL NUT WRENCH IN ORDER TO PROPERLY INSTALL THE RAIL. The Geissele Super Modular Handguard Rail MLOK MK4 9.3in is a quality addition to the Geissele lineup. For more great deals on AR Handguards & Forends by Geissele, please browse our Geissele Gun Parts page.
6 reviews for Geissele 9.3in Super Modular Rail MK4 M-LOK
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JLee –
Product is spot on! Very high quality machining, very tight fit and super light weight. The desert dirt color is a shade lighter than burnt bronze. I was new to the M-Lok system was hesitant to go from keymod to M-Lok now in the process of changing everything I own! 9.5" rail fit perfect on my 10.3" barrel with just enough of the barrel left to mount a direct thread can on with clearance.
Dave –
Looks great, does its job. You can mount different things out front with picatinny rails on all 4 corners. Dont understand those 1 star ratings. Overlook them for sure. Geissele is top notch as always.
JT –
I received this handguard, with small minor scratching near the front of the hand guard.I was willing to overlook that as I’m sure it won’t be pristine forever.That being said, when I attempted to wrap up the install, that’s when I noticed it was missing the set screws required to finish the installation.I thought this was supposed to be a quality piece. Apparently, that just hype.
BattleBuilt –
You can’t go wrong with Geissele rails, especially when it comes to the MK4 line. They are solid as a tank, lightweight and dependable when it comes to sight accuracy.
Pedro –
This rail looks really good and feels good. But does not comes with the gas block in the picture. I wish I would’ve said or give a warning that it didn’t come with it so I would’ve bought it when I bought the rail. So now I have to order a gas block and wait for it. Also the problem is that in the question for this product it said that it came with a gas block and it didn’t so.
Derik –
this is a very sturdy rail. much better than many ive used.