The SRS Gen 4 stealth recoil spring offers an all-inclusive multi-stage remedy that effortlessly takes the place of your usual buffer and spring setup. Its inventive blueprint averts any contact between the buffer spring and the inner wall of the buffer tube, culminating in a seamless and noiseless operation. The dual stages operate in perfect unison, substantially curbing perceived recoil. In pursuit of greater robustness and eradication of potential weak points, we've substituted the screw with a roll pin for the plastic end piece. Furthermore, the rod now boasts a machined cap, and the snap ring has been substituted with a washer, solidifying its durability.