G&G Armament announce the availability of their new G&G Rotary-Style Hop-Up Unit at authorised sellers... "Update your AEG with a rotary-style hop-up chamber. The G&G Rotary-Style Hop Up is made from high-quality reinforced polymer and is compatible with all M4/M16 AEGs. Make faster, more precise adjustments on and off the battlefield. Now available with your local G&G Authorized Dealer."

Replay Sports Airsoft putt out a video to help newbies and perhaps older airsoft players to be familiar with the airsoft hop-up system... "All tests are conducted in a controlled environment. None of the test models are homemade, 3D-printed, or previously modified guns. This week; how toi adjust the hop-up on your airsoft gun."

Tutorial video from Silverback Airsoft showing how to do a hop-up rubber swap on the TAC-41 GBB... "This tutorial video show how to swap the hopup rubber (GBB type,  optional hopup). Changing the hopup rubber will affect the muzzle energy of your airsoft gun, users should obey to laws regarding ownership of airsoft guns in their country.

SBA-HOP-31, 'GBB' hopup unit for TAC-41 includes:

Rock Bottom Airsoft got a guide for you in how to change the Hop Chamber, bucking and nub in your AEG... "In this video we will take a look at how to change components on your inner barrel group. Strictly speaking we are changing the Hop components but this guide will help you even if you only wish to change the inner barrel.

The Blind Sniper does a full test of the Hop-Up Chamber for the VSR-10 made by the Airsoft Philosopher... "Hello everyone, in today's video we will go over the installation of the Airsoft Philosopher hopup chamber. I bought the gen1 when it came out and recorded the assembly footage when it arrived. I finally had time to edit and upload the whole process along with a shooting test!! Let me know what you think!

Another lesson for airsoft beginners as Rock Bottom Airsoft talks about the hop-up system and BB weights... "In this video we will take a look at hop up systems, the components and how they work. We will start by looking at BB weights and bb's in general, this is because our bb's tie in to how effective our hop up can be.

The first part of this video mainly focuses on bb's, picking a weight, quality and overall importance for range.

Shreq Airsoft does a step by step installation of the Action Army Hop-Up on a Jing Gong BAR 10 BASR... "Hey! I'm Shreq, welcome to Shreq Airsoft. This video is all about an airsoft sniper rifle modification I did to my Wolverine Airsoft JG Bar 10 airsoft sniper rifle. I will show you how to install a hopup chamber step by step.

Grace Airsoft has this 27-minute video showing you how to replace the Hop-up and Inner Barrel for your AR-style AEG... "Grace explains in a very long, drawn out and unsure way, how to replace the hop up unit and barrel on an M4/M16 style Airsoft AEG rifle."

Watch the result of putting a Krytac Hop-Up unit into the G&G FN2000 which what JedBedrock exactly did... "Hello everyone and welcome back to another airsoft video. In this video, I install a Krytac hop up into my G&G FN2000. The FN2000 uses a special hop up. I modified a Krytac hop up to fit into the gun. it now shoots on par with my Trident MKII."

Kraken Airsoft recommends the  Maxx Model Hop-Up for those looking into a improving accuracy... "This is hands down the best upgrade I have done to my airsoft gun in a good while. The Maxx model hop up unit is an awesome purchase! A Kraken recommended product."