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AIM Sports M4 Carbine Drop in Quad Rail Handguard

ID: 26633 (RIS-MT021)
AIM Sports815879011152MT02126633
4.6 stars, based on 36 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.

36 Customer Reviews

(Write a review)

by Brian L. on 03/23/2022
"I got this for putting on my sons Matrix sportsline M4. It worked great for that and was a very easy install.
by Sean B. on 04/28/2021
"Just got this and put it on today. Solid aluminum unit, nice weight without adding too much to the gun. A bit of a tricky install like others said, but be patient and it will go into place. I had to push the back end down into the delta ring and twist a bit to get it to align with the barrel nut. Fits snug on my Specna M4.

Solid aluminum
Nice machining
Snug fit
Nice finish
Good price

None yet.
by Phi N. on 02/11/2021
"This thing fits snug! I bought it with reservations for my apex fast attack m4. Doesn't seem too heavy, fit snug and doesn't wiggle.... at... all.... On my rifle it went over my handguard cap, and into the Delta ring at the bottom. Cinch it down with 4 screws and it becomes instantly solid. Will definitely get again if i get another m4 with the stock GI style handguards

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