Wolff Magazine Spring HK USP 9mm Luger 15-Round, 40 S&W 12-Round and 45 ACP 8-Round 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.
- 10% extra power magazine spring
- Fits USP 9mm-15-round, 40 S&W 12-round or 45ACP 8-round (compact)
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