Extreme Performance Valve Tuning Spring For T4E Umarex TPM1 - Walther PPQ - Smith & Wesson M&P9 - Glock 17 Gen 5 - Heckler Koch SFP9 VP9 - Walther PDP

Boost Your Performance by 15%
The long-awaited tuning spring for the T4E Cal. 43 is finally here!

The original spring is replaced with a shortened tuning spring, allowing for a longer opening time, increased gas flow, and a significant performance boost.

Details:
 Compatibility:
    - Umarex TPM1
    - Walther PPQ
    - Smith & Wesson M&P
    - Glock 17 Gen 5
    - Heckler & Koch SFP9 VP9
    - Walther PDP
- Material: Stainless Steel
- Performance Increase: 15%