RetroArms is a Czech airsoft company which manufactures high-quality upgrade and spare parts. The company has become known from its CNC machined parts, especially its super durable gearboxes which are made from 7075 aluminum. RetroArms gives its gearboxes a lifelong guarantee against breaking which tells us a lot about the quality of the parts!
Made of plastic, this C clip is also compatible with other manufacturers' chambers. The clip also has a protrusion, which fits to the track under the barrel, which ensures even better that the barrel stays in place!