As one can probably guess, this is about Guntec's new 15" Air Lite handguard for the AR15. I received the handguard about 2 months ago and have been using it ever since. Guntec has been around since 1989. They make tons of accessories for AR15's, AR10's, AK's, and even more.

Shown with an extra M-Lok rail on bottom and a rubber M-Lok cover

The Guntec hanguard that I received was in M-lok. For you keymod fans, they make them also. Now the first thing I would like to mention is how thin the handguard is. If you like them thin, you'll love this handguard. It measure 1.5" wide, 1.975" tall, and has an inside diameter of 1.34". It also has a built in full length top picatinny rail. I will mention that although it is M-Lok, it only has 3 m-lok slots each on the sides and bottom, toward the very front of the handguard. This would be 3, 6, and 9 o'clock. The rest of the handguard has cut out triangle patterns to reduce weight.

Now, this Guntec handguard is light. On my scale, it weighed in at 9.6 ounces complete with barrel nut and screws. Remember, this is a 15" handguard with a full top rail, so this is quite good. The barrel nut is also aluminum, which helps with the weight.

Installation of the Air Lite was pretty straight forward. Which is good since it didn't come with any instructions. Once all your old parts are off. Slide the barrel nut on and tighten as normal. If the screw holes that hold the handguard on don't line up, remove it and put one of the supplied shims in it and try again. My kit came with 4 shims, I only had to use 1 to get the holes to line up. Guntec also lists a crowfoot wrench for the barrel nut, buying the wrench will make life much easier. Next install the gas block. I only mention this because you will need a low profile one, and smaller is better in this case. Then slide the handguard on. Line it up. Then install, and tighten down, the supplied screws. Thread locker is probably a good idea. And as always, safety check the rifle when finished.

Depending on where the gas block is located, you might run into some accessory mounting problems. Since the handguard is so thin, the screws on the m-lok parts may run into the gas block. On a mid-length or rifle length gas system, one set of m-lok attaching slots will not be usable. The inner part of the handguard is just too close to the gas block. Cutting down the screws won't even work. If you run a carbine or shorter gas system, you won't have this problem.

After shooting this handguard, here is what I found. Being that it is very thin helps if you shoot thumb over bore, or if you have smaller hands (think children). I did notice that it heats up faster than some of my larger diameter handguards, but really this is only a problem after 3 or 4 30rd mag dumps. It has no sharp edges and is flat on the end so it doesn't get caught up on stuff. It is not what you want if you plan on putting a suppressor under it (too thin). It is quite sturdy. And it comes with rubber m-lok inserts.

If you are looking for a light handguard, this Guntec might be for you. I would like m-lok slots all the way down, which they make, just not in the Air Lite version. The price is reasonable. It looks good and even comes in many different colors. Go check out Guntec, they probably make an accessory for you.

Firearms Insider Reviews - 8 Key Points

Claim to Fame:

15" really light AR15 handguard

Target Market:

AR15 owners wanting a thin and/or light handguard

FNBs (Features & Benefits of this product):

T6 Aluminum Body
Proprietary Lightweight Aluminum Barrel Nut Included
Total Weight Including Barrel Nut Is 8.9 oz. I measured at 9.6 ounces
3 M-LOK Slots On 3 Sides of Front End Of Handguard
Triangle / Diamond Cuts Throughout Handguard to Reduce Weight
Rail System Slides Over Barrel Nut , And Is Locked Up Against Receiver With 6 Screws
Monolithic Top Rail
15" Length
Internal Diameter: 1.34"
Outside Diameter: 1.50"
Made in USA