Wolff Extra Power Magazine Springs are used when magazine reliability is critical or when original factory springs have lost their tension. These extra power springs put more pressure on the follower, presenting the cartridge to the slide with more force.
In some pistols the use of an extra power magazine spring may require a more powerful recoil spring to be installed to
compensate for the extra force of the cartridge.
Installation requires disassembly and reasembly of the magazine
Fits 10 and 15 round magazines
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