Your cart is empty

HS-Armory 650mm R-hop Barrel - ZCI Stainless Steel 6.02mm Based


This barrel comes with a genuine R-hop installed by Hunterseeker5 himself. These are installed incredibly well, they look like they are actually part of the barrel they fit so close. The installation quality of an R-hop makes a big difference in it's final performance and being the inventor and manufacturer HS5 is the best at installing them. The base is a ZCI 6.02mm precision stainless steel barrel that was chosen for it's lack of coatings, it's exceptional internal finish, and customer feedback of good performance. The R-hop is a revolutionary hop up system that not only greatly increases accuracy but also increases range at equal velocities. It distributes the pressure on the BB better than any other system available including flat-hop and all aftermarket buckings. They also are intrinsically very durable and pretty much never wear out. Before installing you need to read the R-hop guide or maybe watch a guide video as they will note the modifications needed to the hopup arm and bucking as well as the fact that it should be glued to the hopup bucking with RTV silicone. Also remember to properly clean the barrel after receiving it as they tend to accumulate dust from shipping.

Barrel length: 650mm
Barrel material: Stainless Steel
Barrel: ZCI 6.02mm Stainless Steel
Fits: Any AEG with a standard hopup and hopups using TM M14 style spacing
Hopup alignment notch spacing:17-20mm and 22.5-25.4mm


Shipping notes: To keep shipping costs as low as possible these are calculated as their exact weight with their special packaging tubes. Because of this they can't be shipped with any other items besides M-nubs, R-hops, and buckings. So when ordering these barrels AND using first class mail please put any other items you wish to order (besides the ones just mentioned) in a separate order so the shipping works out correctly, if it's priority mail then any items can be added. For international orders using priority mail, individual barrels and all other items (except the previously mentioned exceptions) must also be separated into separate orders (this means each barrel must be in it's own shipment), however barrels will be shipped via first class (normal mail) instead of the selected priority (slightly faster).

Sold Out

To be notified when this product is back in stock please click here.

  • Model: J-17-HSA
  • Shipping Weight: 0.8834lbs
  • 0 Units in Stock
  • Manufactured by: HS5

This product was added to our catalog on Wednesday 26 March, 2014.

Customers who bought this product also purchased...

Let us notify you when this product is back in stock!

Simply enter your details below and we will send you an e-mail when “HS-Armory 650mm R-hop Barrel - ZCI Stainless Steel 6.02mm Based” is back in stock!

We will not send you any other e-mails or add you to our newsletter, you will only be e-mailed about this product!