Replacement spring for S&W M&P 140mm extension.
Also works with the HK P30 and HK VP9 140mm +5 extension, our HK 45 +3 extension, and the HK USP Expert.
Also works in the Canik 140mm +4 extension, but provides one less round of capacity (+3).
(Longer than stock, black in color, double-ended.) By Wolff Gunsprings.
Due to U.S. State Department restrictions, we cannot ship this part internationally.
5 Reviews Hide Reviews Show Reviews
have been using Wolff springs for years with total satisfaction.
My TP9SFX was catching rounds right at the tip of the feed ramp this gave them the push to feed right
With this spring my mag now holds 21 rounds whereas with the factory spring it held 22. Can this spring be trimmed to allow 22rds and still be reliable? ----------------------- Unfortunately, no. However, if you go to the Grams spring/follower, you can get 23 rounds reliably. The downside is the slide will never lock back with a Grams follower -- that's how they get the extra +1. -- Robin Taylor
Works perfectly. Wished you would have stated I needed this when I bought the +4 extensions. Could have saved me some money on shipping. ----- RESPONSE: Normally they aren't needed, but (obviously) that varies. Glad we were able to help you out.
It is strong and slide lock good for ny Canik tp9sfx