There are thousands of accessories for Glock handguns, we have assembled the best of the best. Although we have access to many of the aftermarket internal parts such as titanium strikers etc.. After testing these parts in our training guns and from observations at the GSSF shoots we've chosen not to sell them. The majority of Glocks that have experienced functioning issues in our training classes and at the GSSF shoots can be traced back to non-factory internal parts. As Law Enforcement Glock armorers  we can attest to the fact that at no time do you touch your Glock or factory parts with emory cloth or a bastard file. Yet when ever you watch the so called armors at Gunshows installing the aftermarket parts that are busy polishing and filing away.