S&W 6904/4006 series XP magazine springs 3 pak $34.97 Magazine springs for Smith & Wesson pistols in +5% extra power. 74763 Only 1 left in stock S&W 6904/4006 series XP magazine springs 3 pak quantity Add to cart Categories: Smith & Wesson, Wolff Gun Springs Related products Enfield 1914 / 1917 Rifle Service Pak $24.97