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AIM Sports M4 Carbine Drop in Quad Rail Handguard

ID: 26633 (RIS-MT021)
AIM Sports815879011152MT02126633
4.5 stars, based on 33 reviews
AIM Sports M4 Carbine Drop in Quad Rail Handguard
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AIM Sports


MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.


  • Aluminum alloy construction allows the user to integrate a RIS system to their rifle without a massive weight increase
  • Quad rail design provides plenty of real estate for mounting a wide variety of accessories, compatible with all 20mm weaver/picatinny accessories
  • Easy drop in installation utilizes existing delta ring and handguard cap for a snug, wiggle free fit

Color: Black

The M4 carbine length drop-in quad rail is an easy to install upgrade for the basic carbine. Made of black anodized aircraft grade aluminum and compatible with most direct impingement gas systems. When installing the two-piece design no gunsmithing is required. Color: Black anodized
Length: 6.5"
Compatibility: Most popular AR15/M4 pattern rifles with a 7" A1 style handguard
Material: Aluminum alloy

Manufacturer: AIM Sports

About AIM Sports

Since 2007 Aim Sports Inc. has been a leader in bringing innovative, quality, affordable products to all varieties of American Shooters. Never afraid to introduce unique items to even the narrowest segments of the shooting sports world, we continue to keep our ears to the ground for feedback in our ever improving and ever expanding product line. Our design team has decades of experience, from law enforcement to competition shooting, and everything in between. With the drive to stay on the cutting edge, we are sensitive to the trends and new directions of this rapidly evolving industry. Whether it is unique modifications for classic surplus rifles, or KeyMod and M-Lok compatible rail systems, our customers know why Aim Sports products are sold on five continents, and why consumer loyalty drives us to introduce increasingly advanced firearm accessories each year.

33 Customer Reviews

(Write a review)

by Joe L. on 03/25/2020
"Got this for my old King Arms M4A1. Perfect fit, easy install, and feels solid once everything is tightened up. Gave my M4 a new lease on life, and I can finally mount the accessories that I always wanted to. Great price too!
by Pavlos P. on 12/04/2016
"Will this work with a Krytac CRB?
by Cody P. on 07/01/2015
"Just had one delivered to my house. I installed it on my KWA Commando. It is very simple to install. Just popped off the original M4 plastic handgrips and slapped the upper and lower rails into place. The rails also come with four screws and an allen key. So after you get it on and you put the four screws in to help it stay sturdy the rail has absolutely no wobble or movement. I am pretty satisfied with this rail system even though it's a basic upgrade. I recommend this to anyone who may not have the tech skills to do a full upgrade.

Simple Upgrade
Good Finish
No Wobble or Movement

None At The Moment

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