ZCI - 6.02 R-hop M4 M16 Drop-In Kit Assembly

ZCI - 6.02 R-hop M4 M16 Drop-In Kit Assembly - Hop Systems

ZCI - 6.02 R-hop M4 M16 Drop-In Kit Assembly

 [shortdesc]The R-hop Drop In Kit is the fastest way to enjoy the benefits of the R-hop and start hitting your targets. Just drop it in and play, with no hassle and labor involved on your end.  Yup, we just did everything for you and only used the highest quality parts and installations. Each kit has performance assurance, all kits are tested before shipment and all parts are assembled by our professional technicians and ready to play out of the box.

R-hop products are custom made and tested to perfection, please allow 1 week for labor time and shipping. Orders will ship early most of the times.[/shortdesc]


The R-hop Drop-in kit is an easy to install upgraded drop in setup for your airsoft gun. The fastest way to enjoy the benefits of the Rhop without all the hassle and labor. Just drop in, adjust hop, and play, with no work involved on your end. Our Drop in kits have a performance assurance; all kits tested before shipment. All parts are assembled by professional technicians and are ready to play out of the box.


The R-hop is the best trajectory performance enhancement for any airsoft gun. It improves your accuracy, range, consistency, durability, and more. It also allows the effective and efficient use of heavier bbs. A perfectly installed r-hop is the best trajectory upgrade that will surpass all other systems. Hop Systems promises a perfectly installed r-hop that will give you the best shot consistency and trajectory straightness. With the R-hop, you will be able to hit your targets more often, reach farther, and effectively use heavier bbs.


The ZCI barrel is the best value for performance barrel on the airsoft market. This is a great option for airsofters looking for a high quality steel barrel at a low price. This affordable barrel paired with an rhop, makes it one of the best performing barrels on the market. ZCI has one of the best price for performance ratios, being able to give a good performance for an affordable price. ZCI Barrels are constructed out of stainless steel and also feature a quality bore surface quality, very good for the price. ZCI Barrels are manufactured in China, which helps to bring costs and prices of ZCI Barrels down. The machining method used for ZCI barrels is Barrel Extrusion, a common method used for most inner barrels for airsoft. The machining tolerance is around +0.02mm - 0.05mm. In conclusion, ZCI stainless steel barrels is the best stainless steel barrel at its price point of around $20-$30, and absolutely recommended by airsoft technicians around the world.

Included in the R-Hop Drop In Kit

Inner Barrel: ZCI - 6.02mm R-hop Stainless Steel Tightbore Barrel
Hop up chamber: Lonex - M4 M16 One-Piece Metal Hopup Chamber
Service: R-hop Complete Package Service
Bucking: Lonex Flat Hopped Bucking
Hopup Nub: M-nub Installed

Compatibility: For AEG, HPA Platforms. For M4 / M16 / SR-16 / M4-RIS and other compatible Airsoft models that uses M4 hopup units.

All R-hop drop-in kits come with a Lifetime Warranty 😎

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