Springer Precision Extra Power Mag Springs for Sig Sauer MPX THRiL Mags

Upgrade the reliability and performance of your Sig Sauer MPX with Springer Precision Extra Power Mag Springs designed specifically for THRiL magazines. These precision-engineered replacement springs deliver consistent feeding and enhanced functionality, making them an essential accessory for competitive shooters, tactical users, and enthusiasts seeking dependable magazine performance. Key Features Extra-power design optimized for 2022 THRiL MPX magazines and compatible new-style OEM Sig Sauer magazines Constructed from high-quality stainless steel for durability and long service life Provides reliable spring tension for smooth cartridge feeding and improved last-round slide lockback Direct drop-in replacement that maintains the integrity of your existing magazine assembly