This is my second time purchasing this handguard, and it's fantastic. On a previous build, I used a Troy drop-in battlerail, but I couldn't get it to stop rotating inside the handguard cap and delta ring assembly.
Switching to this 9.7” FSB version solved the issue completely—it locks up rock solid with zero play. Just like my last build using this rail, I had to grind down the front sight block bayonet lug to fit, but the final look and feel are worth it. Overall, it creates a "SOPMOD Block 1.5" feel.

I will say when I first saw ohhunt while looking for a mk18 style quad rail I was very weary, I read reviews both on the ohhunt website and Reddit saying that it was "mid" or "airsoft" quality, so I decided to take a gamble, "what the heck?" I thought "it's only 90 bucks so if it sucks I won't be out that much money" I ordered on a Saturday and it took approximately 8 days to arrive, I will say it was hard to get a response back from customer service but overall the shipping process was pretty seamless. When it arrived I immediately got to work installing it. The barrel nut isn't the best quality so if you can source a DD one or already have one I'd just use that. Installation was a breeze with watching their video other than the fact it took me over an hour to get my old barrel nut off but I digress. After installing I put my laser and flashlight on and went to the range. I must say I am really impressed with this handguard. It looks sleek, maintained zero with my laser, and even after shooting rapid fire with an FRT and suppressed, nothing melted, the handguard got manageably warm, but not "OH MY GOD" hot, and it vented the barrel pretty well. To say the least, I will be buying another one in coyote brown to better match the mk18 style. If you're looking for a cheaper alternative to the DD handguard, this is definitely what I would call a sleeper. Very impressed, thanks ohhunt

I used two of these so far, one on my block II build and another on a customers rifle. Both installed great. The flathead screws are a tad soft so use a **** driver that is the same thickness to prevent gouges. I would definitely buy more of these for future projects and would reccomend to others!

I’m a content creator so I have a ton of free **** sent to me from companies, and the RISII handguard was always the best, in terms of lock up and zero of laser. This handguard PERFECTLY performs both jobs. This is more proof DD is ripping us off. I encourage you to get this, and prove me right. This thing rocks. I spent my own money on this specifically to be unbiased. This thing rocks, will be building a CQBr here soon, as my BLOCK 2 is now complete thanks to OhhHunt

Little wobbly before tighten and shimm that came together was not fit with my psa upper barrel nut assembly but when it gets tighten it fixes pretty well. Look amazingly beautiful and has good surface coating just like original mk18.

Threw this on a parts build, haven't shot it yet but the lock up is pretty damn solid, and it looks cool.

Machined well, no rough or sharp spots, comfy enough bare handed for a quad rail.

It took 16 days to receive my handguard due to the issue noted in my previous review (TL/DR: Rail was missing from package and Customer Service didn't respond until I left my review) but I finally got it. Everything fits nice and tight, no rattle, no movement, the FSB cutout fits up beautifully to my short stroke piston system agb.
I would have given this 5 stars but I knocked one off for Customer Services lack of communication up front. I don't think it's unreasonable to at least inform the customer you are looking into the issue and will get back with them.
That said, they did get me a replacement rail within 5 days at no additional cost.
If your USPS carrier is better than the majority of USPS then you should have no problems getting your MK18 rail and I'm sure you will love it.

When I opened my mailbox the package was open and the rail was gone, just the barrel nut was inside. I've reached out to Ohhunt 3 times already via email, and twice using the chatbot and still haven't received a response or resolution.
I'd love to leave a better review, but so far, not having the rail, and the lack of communication with Customer Service, 1 is as high as I can go. Maybe if they ever get back to me I'll upgrade the rating.

This was one of the best buys I have ever made. Being on a budget but still being able to get quality products is a wonderful thing. The handguard feels great and it was easy to install with the video provided on the product page information. The Coyote brown is a bit dark but still looks awesome. If your looking to build out a clone MK18 on a budget, this quad rail is the way to go.

This is a very good hand guard. Very good quality. Highly recommended. NOW if they would just come out with the Mk18 RIII

I’ve bought 3 or 4 off these rails in different sizes they look great are very solid and you can’t beat the price

I like it a lot so far would buy this over mwi or bcm for the quality and price any day

This thing is great! Great price, very sturdy and fit like a glove. Highly recommend. I liked it so much, I bought them for a couple of my rifles.

This is my second mk18 handguard. These work great. Fits tight and no issues. Highly recommend.

Excellent handguard.

I spent time researching if the mk18 9.5 will fit with mid length gas port barrels and found mixed answers, so I gambled and it fits mine even with a bulky adjustable gas block nice and snug.

Bought it a while back and decided to chop it for a flush fit! Looks absolutely phenomenal, install was easy and the shipping was fast. 10/10

This thing is awesome, 10.5 inch barrel fits just forward of the end of the handguard and it’s tight

I stumbled across this rail on YouTube and decided to try it based on its price and reviews. I got the shorter rail for my 11.5 pistol, and I’m genuinely impressed with its quality and machining. It feels worth far more than its cost, rivaling pricier brands. No tool marks or major cosmetic flaws, though the finish shows scratches easily, which a paint pen can fix. Installation was straightforward using a castle nut wrench, but the receiver’s anti-rotation tabs were slightly wide, requiring minor adjustment with a rail clamp. Overall, I’m thrilled and plan to buy another for my 16-inch AR.

I absolutely love this rail. The price makes it even that much better. Definitely a high end rail at a fraction of the cost.