EdGI – 6.01 R-hop Bull Inner Barrel


The R-hop is the absolute best upgrade for any gun to achieve maximum accuracy, range, and consistency for your trajectory.

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.


Flat Hop Up Unit

Customize your own RHOP Drop-in kit. Add a Flat-hopped hop up chamber and the correct matching bucking with the R-hop barrel of your choice. All orders will come pre-assembled into a drop in r-hop kit.

Flat-hopped Bucking

A Flat-hopped bucking is required with the R-hop barrel. You can purchase one with your R-hop barrel, or combine it with the matching hop up chamber to make a Drop-in R-hop Kit.

Barrel Lapping

Lapping will add 2 weeks lead time for labor.

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  • About the R-hop barrel: The RHOP barrel 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.


  • About the Inner Barrel: EDGI Custom Works manufactures the highest end barrels on the airsoft market. EdGI makes the world’s greatest inner barrels, hands down. The internal surface of EdGI Barrels are hand lapped and polished down to ~7 microns, giving it a mirror finish.


  • Requirements: You will need a flat-hopped bucking and ideally a sorbo flat hop nub or m-nub to install with your r-hop barrel ( You can still use the stock soft nub with great performance if you can’t use a soft flat nub ). You can find both items in our product options. Any errors in modification and installation can negatively affect the performance of the r-hop; Therefore, professional installation is recommended. For performance assurance and to save you the time and hassle of modifying the parts yourself; You can purchase an R-hop Drop-in Kit, or send in your hop up parts to us for professional installation and modification. Using high-quality heavy bbs is ideal for performance; 0.25g is good, 0.30g and up would be perfect. The heavier the bb, the better your accuracy, consistency, and range will be.
    • Professionally installed and tested before shipment
    • Comes with an extensive instructional manual for the r-hop.
    • Lifetime warranty: covers manufacturing defect only.

    Compatibility: For Airsoft AEGs

Additional information

Barrel Length

200mm, 229mm, 247mm, 260mm, 285mm, 300mm, 363mm, 375mm, 407mm, 455mm, 509mm, 303mm VSR10 GSPEC, 430mm VSR10