Multi Spring System

Special buffer system as an upgrade for all AR15 carbine buffers including MR223. By using two locking fields in series, a particularly soft spring rate of the buffer system is achieved. In practice, this means a greater spring force with the bolt closed, allowing for more reliable feeding and locking without increasing the required maximum loading force. Furthermore, the set includes two extra spring sets to enable optimal tuning for ammunition, weapon, and any used suppressors. The extra spring sets are about 20% stronger or weaker compared to the standard spring package. Made from high-quality stainless steel.