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  • Easy To Fit
  • Spare Replacement
  • Polymer Construction
£2.99
  • Includes Bucking
  • For Marui Style AEG
  • For M130-150 Spring
£5.99
  • Includes Bucking
  • For Cold Weather
  • For Marui Style AEG
£5.99
  • 70 Degree
  • Easy To Install
  • Marui/WE/KJ Pistol
£5.99
  • 70 Degree Hardness
  • For 2012 LM4 GBBR Designs
  • Purpose Designed KSC / KWA
£5.99
  • Silicone Rubber
  • For KSC MP7 & MP9 GBB
  • High Quality A-PLUS Design
£5.99
  • System 7 Pistol
  • KWA Vector GBB
  • 2012+KWA & KSC GBB
£5.99
  • Silicone Rubber
  • For System 7 Pistols
  • KWA & KWC Compatible
£5.99
  • WE & TM Compatible
  • Open Bolt Compatible
  • VSR / Bar-10 Sniper Rifles
£5.99
  • For Hadron M-TDC
  • Cure Bad Trajectory
  • Greater Spin Control
£6.00
  • 5 Clips Per Pack
  • Fits Mix Of Hop Units
  • Can Be Shaped With Knife
£6.99
  • Includes Red & Blue
  • Polymer Construction
  • Works with .2g to .43g
£6.99
  • For GBB & VSR
  • 50 Degrees of Hardness
  • Tapered & Concave Patch
£6.99
  • 75 Degree Toughness
  • Monster / Diamond Design
  • For KSC Gas Blowback Guns
£6.99
  • For 90m/s to 120m/s
  • For Long Range Shots
  • 50-80 Degree Rubbers
£6.99
  • Wide Flat Patch
  • WE, Marui, KWJ GBB & VSR
  • Variable Degrees Of Hardness
£6.99
  • Wide Flat Patch
  • WE, Marui, KWJ GBB & VSR
  • Variable Degrees Of Hardness
£6.99
  • Wide Flat Patch
  • For KSC GBB Style Barrels
  • Variable Degrees Of Hardness
£6.99
  • Wide Flat Patch
  • For KSC GBB Style Barrels
  • Variable Degrees Of Hardness
£6.99
  • CNC Machined
  • Perfect Air Seal
  • Barrel Stabiliser
£6.99
  • Wide Flat Patch
  • WE, KWJ GBB & VSR
  • Varying Degrees Of Hardness
£7.49
  • Wide Flat Patch
  • WE, KWJ GBB & VSR
  • Varying Degrees Of Hardness
£7.49
  • Wide Flat Patch
  • WE, KWJ GBB & VSR
  • Various Degrees Of Hardness
£7.49
  • Wide Flat Patch
  • WE, KWJ GBB & VSR
  • Various Degrees Of Hardness
£7.49
  • Wide Flat Patch
  • WE, KWJ GBB & VSR
  • Various Degrees Of Hardness
£7.49
  • Push Fit Design
  • Polymer Construction
  • Standard Components
£7.99
  • 50 Degrees
  • Extra Large Patch
  • For VSR-10 / Unbridged
£8.49
  • 50 Degrees
  • Silicon Construction
  • For VSR-10 / KJW / WE 
£8.49
  • For 0.40g +
  • Extra Large Patch
  • For VSR-10 / Unbridged
£8.95
  • For 0.40g +
  • For VSR-10 / Unbridged
  • Diamond Shaped Patch
£8.95

The HOP Unit is without a doubt the most important vital part of getting your BBs to reach out as far as possible, and is subject to lots of personal preference, experience and experimentation. There's lots to know with regards to HOP Units so its best to do plenty of research and/or ask others what they've had success with. There are many different types of HOP Units, which all offer a different level of precision over the adjustments you can make, and of course many different types of assemblies for different Gearboxes. When looking at HOP Rubbers/Buckings be sure that you're buying the correct type for your HOP Unit with regards to the type, hardness and ammo choice you have made.