ARC Rail Kit for ACH MICH Helmets | Universal Side Mount System for Lights, Cameras & Gear | Easy Install High-Strength Polymer Rails | Compatible with Fast High Cut Combat Headgear

I don't see any big difference between these and the actual Ops Core brand. I paid the money for an Ops Core set, which I have on another medium ACH. If I'd had seen these first, I would have saved myself some money and bought these ones. The bolts it came with worked fine for me on my Army issued medium ACH. It is a little struggle putting them because the holes on the helmet don't exactly match up with the openings on the rails. If you wear bigger than a medium helmet, don't get these and make sure you get bigger size rails. Another good product from DLP.

The rails themselves work, feel solid, and fit my large ach great. Only complaint is the bolts were too short but I had some ops core arc hardware laying around so it wasn’t a big deal. Bolts need to be about 1/4 inch longer.

Accomplishes the task it's designed for and is a lot cheaper than ops core. These did not fit anywhere close to flush with my mich tho

Installed it on my size medium ACH from when I was in the army and works great. The back screws are too short to install so pick up some longer ones from Home Depot. Also based on some of the reviews and the way it fits on a medium, I don’t think it will work on size large + helmets

Don’t buy these. I wish I had listened to my initial instincts and returned them immediately instead of trying to make them work. They did not fit my ACH properly, so I did what any redneck engineer would do and started getting busy with a dremel. I got them shaved down and installed, just to realize that the rails won’t fit any accessories. Tried my headset…..nope. Tried my light mounts…..nope. Rails are too far out of spec and everything just rattles around or falls out.

It doesn't sit flush against the helmet which leaves a gap making the rear screws too short

If you want the bungees for these rails, buy this kit instead (I had to buy the bungees after-the-fact): https://www.amazon.com/DLP-Tactical-Accessory-Combat-Bungees/dp/B07D5P2S7M Also, included screws WILL NOT fit a ballistic (ACH) helmet. Save yourself some pain and get these screws at the same time: https://www.amazon.com/gp/product/B0813RG5L3 As FYI, I paired with this replacement helmet strap (note, you will use the nuts that fit into the plastic attachment points BUT you will not use the screws, again buy the longer ones above): https://www.amazon.com/gp/product/B01AUQNTD8 Finally, your rear screws will pop through the nuts a tiny bit... this is what I picked up to cover the end of the screws, worked perfectly: https://www.amazon.com/gp/product/B01N632TQ7 Hope this saves you some time researching. I picked up my helmet used at a surplus shop... a few coats of paint and all these tweaks, couldn't be happier!

I bought these rails originally for my xl ach helmet. I haven't decided yet to high cut so I wanted a rail thay followed along the outcrop and fit without cuts. Found these and thought great. Super fast shipping, they are plastic but seem to be fairly well made. Overall product quality I'd give it 9/10. Comes with new screws to replace current. I saw alot of people saying the provided ones were not long enough, but they worked for me so maybe they've fixed that issue. Fast forward to install. These rails are predrilled to mount into existing chin strap holes. Problem is i have a large head, and wear a XL helmet. This puts the screw holes further apart. And would not work. Meaning either I drill new holes, or they will not work. Luckily I have a size medium for my girlfriend, and mounted these onto her helmet (pics attached), and they work/fit great. All in all, if you have a normal sized head these are well worth it at the price point. If you wear an xl like me. They won't fit sadly. I wish they had one for my helmet size as I'd gladly buy another set.