SKU: 34220390
SIG factory Locking Insert for P220 stainless steel slide models, 5 dot.SKU: 34221660
SIG factory Locking Insert for P220 R3 carbon steel slide models, 4 dot.SKU: 34280090.01
SIG factory Locking Insert for P228 and P229 9mm models, 3 dot.SKU: 34224543
SIG factory Locking Insert for P229 .40/357 models, 1 dot.SKU: 34239094
SIG factory Locking Insert for P239 9mm/.40/357 models.