A great accessory to the PT92. I have no issues with inserting the co2. Everything feels secure and substantial. I am not sure in terms of heavy droppage during use but I personally am not using it for that purpose. The bb's load relatively well although it is not a quick reload. The springs are strong and I foresee them retaining their retention for quite sometime. The load gives you a lot of bb's which is nice although due to the pistol, I find that my co2 is spent rather quick and I am often left with bbs still left. I am not sure if there is an easier way to empty the mag but overall I am pretty impressed.