Wolff Magazine Spring for Para-Ordnance P13, P-14 10% Extra Power

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. Compatible with:13, 14 & 15 round .45 ACP17 & 20 round Super .3815 round 10mm & .40 S&W18 round 9mm