R-Hopped ZCI 6.02mm Tightbore Barrel + Modify Flat-Hop Bucking AEG R-Hop RHop

I put this in a Lancer Tactical Gen 2 MK 18 MOD 0 CQB and it absolutely one of the best upgrades i have done so far shot 2 mags full auto dumped every single shot not a single feed issue highly recommend this company

The barrel comes ready to use, it’s easy to install and I bought the 380 mm barrel ZCI one. I fitted it to my M27, which was shooting about 385 fps and it now shoots 430 fps using .25 bbs I did nothing to gearbox or the gun, I used a maxx hop unit. The accuracy has improved. I now have 3 aegs with r hopped barrels and will not be using regular hop up buckings again.

I am absolutely blown away by the quality of the product and the customer service. The product arrived within three days of my purchase date with free shipping, which is already incredible. The product arrived with the r hop patch installed, and came with an extra r hop patch as well. The barrel is a top quality barrel, and is steel as advertized. This product includes the flat hop bucking and flat hop nub which are both made by Modify. The barrel is completely secured in a tube, and comes with 2 o rings for barrel stabalization. They even provided an instruction manuel that describes the best way to secure the product in the hopup chamber. The only thing I will do the increase accuracy is to use barrel lapping to smooth the barrel to perfection, which is already possible because the barrel is steel. I highly recommend this product over all other barrels do to everything that is included.

I put this into a KWA two piece hop up and found that the standard hop up nub was too large and provided too much hop. I ended up making a custom one.Beyond the nub, the actual rhop works great, it provides a lot of stability and consistency up to about 100ft. I’ve put about 1000 rounds through it and it’s holding up well.

I put this in my Kythera/Krytac build. Replaced some homemade rhop I received. All you have to do is add a little tech grease on the barrel for the bucking, and then on the outside of the bucking for the HopUp. Everything slid on, and it is easily over hopping. .32’s. I can still use them, but to fully use this setup and maximize my range with my Prowin HopUp, heavier bbs like .43’s will be needed. Easily reaching 150ft plus with 32’s.

So far so good!I've put 2000+ rounds and this barrel seems to be holding up great! The rhop patch is perfect and the bucking that comes in the package is absolutely amazing. My fps went up by 10 just because of a much better air seal the bucking creates. I would highly recommend getting this over a Prommy barrel. Everyone says the prommy barrels are higher quality but this barrels seems just as good.One thing to note, I'm not sure if this is listed in the instructions, but I put a dab of glue on the nub that attaches to the bucking arm. I'm not sure if I'm supposed to do this but it helps keep the nub in place when installing the flat hop.Thanks Elvish Tac!

Ive bought several of these barrels now. Every single one has performed way over my expectations. zci hop is great but the rhop patches and barrel combo are crazy nice for the price. Just finished slapping a p* f2 into my vfc mp7 with just this barrel setup and bucking . im shooting lasers at 200 ft +. I would ignore the negative reviews. As long as you install them correctly and make sure the hop and barrel are aligned you will have no problem whatsoever.

This barrel is junk, 1st not polished as stated, 2nd the outer diameter is off and will not fit in any outer barrel that I have and I tried it in 5 different makes and brands of outer barrels.3rd the rhop material is to hard and will cut into the bucking.