The Overwatch Precision Firing Pin was developed under the harshest full-auto conditions to provide you with the finest product possible. The OP Striker is intentionally built like a tank to decrease the chance of failure seen in other aftermarket parts produced with failure points masked as lightening cuts and holes. Features416SS constructionSwiss machined for precisionStress relieved and Heat Treated for maximum durabilityDirect replacement for OEM PN# SP00049Fits all G1-4 9mm Glocks (non-slimline) DISCLAIMER:This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.