3.5/5. (compatibility -0.5, trigger -1) Here is a 1 month review. If you are looking for a correct launcher for your G36, this is the only choice, but read my comment before you buy it. The comment is based on my personal experience on the field. Pros: --It makes your G36 become a monster. --Integated grenade launcher sights, and it really help your aim. --Looks super awesome on G36, especially when you are in a full flaktarn loadout, it draws a lot attention. --It's a mass killer if you fire it at correct time, 120rd in 1 shot, think about it. --Feels better than a M203 when you holding the rifle, the grip really works. --The safety has a good design, it is on a position where you can easily touch it by thumb and it is ambidextrous. Cons: --The biggest problem for UMAREX G36 owners, it is not really universal. I thought I can easily install this launcher on my UMAREX G36 but it doesn't fit, I had to file the gun itself because the UMAREX receiver is a little bit wider than the inner width of the launcher handguard. After you file the receiver, it fits perfectly. --The trigger. The trigger is the worst part on the entire launcher, you have to hit the trigger heavily and quickly when you fire it, if you pull the trigger just like shooting the gun itself, the grenade will not fire. The reason is the firing pin. You know the chamber never precisely fits the grenade, so the grenade is pushed a tiny liitle bit forward by the firing pin when you pull the trigger, then the firing pin's length is not suffucient to push the valve ( Plz forgive my English, I am not 100% sure what it should be called, I mean the round thing at the bottom of a grenade), the result is sometime if you pull the trigger too slow or pull trigger with insufficient force, it will not fire. --G36s are very light weapons. but this thing makes my G36 heavy as hell, it is almost same heavy as a G36C without mag and buttstock. The gun becomes extremely front heavy because of the launcher, unless you fit a AR15 stock adapter and use some heavier stock such as UBR stock to rebalance the rifle, but that will bring a heavier overall weight. --The grenade launcher handguard means smaller battery space and tortures you every time you take off and install the handguard. Overall: Just my personal opinion, most airsoft grenade launcher are stupid products, they never give you some actual support in the field, but consume your energy quickly. However, I did not buy a launcher for boost my kills, I bought it because launcher is quite fun to play, and it is a part of my Bundeswehr loadout. In the field it's stupid but fun and cool. Before you check out, think about why you buy it.