Sig Sauer Locking Insert, P229, P229-1 $95.00 Locking Insert P229 40/357, P229-1 9/40/357. Sig Part: Locking-insert-4 In stock Sig Sauer Locking Insert, P229, P229-1 quantity Add to cart Category: Sig Sauer Related products Sig Sauer Firing Pin Spring, P220/4/6/9/239/2022 $15.00 Sig Sauer P220 – 29 Hammer Spring 28lb. $9.97