Sig Sauer Mag Catch Stop Spring, P224/6/7/9/239 $10.00 Mag catch stop spring, P224, P226, P227, P229, P239. Sig Part: Spring-15 Out of stock Category: Sig Sauer Related products Sig Sauer P220 – 29 Hammer Spring 19lb., for plastic spring base $9.97 Sig Sauer P220 – 29 Hammer Spring 20lb. $9.97