JP-9 Slug Plug fits Glock pistols, Generation 4, Models 17,18,19,22,23,24,25,31,32,34,35. Not for SF models. Used with backstrap only; you will receive small wrench and screw as seen in photo with slug plug and simple install instructions. 

REPEAT: THIS PLUG IS FOR USE WITH GLOCKS WITH BACKSTRAP ONLY. IF YOU ARE NOT USING THE BACKSTRAP THIS PLUG WILL NOT FIT PROPERLY! PLEASE MAKE SURE AND CHECK IF YOUR GUN HAS A BACKSTRAP FIRST. PLEASE SEE PHOTOS FOR PICTURES OF BACKSTRAPS AND GLOCK WITH BACKSTRAP. WE DO NOT DO RETURNS BUT WE WILL EXCHANGE THE PLUG IF YOU ORDERED THE WRONG ONE. BUYER PAYS FOR RETURN SHIPPING COSTS. 

Subdued engraving of original Greek ΜΟΛΩΝ ΛΑΒΕ, Come and Take Them. When the Persian armies demanded that the Greeks surrender their weapons at the Battle of Thermopylae, King Leonidas I of Sparta responded with this phrase.  

Streamlined, understated, subdued look.