Hey team. Having lockback issues on last round - here's the quick story on the pistol: 3rd Gen G19 Maybe 2500 down the pipe Gun not fired for 8-9 months Carry gun, kept pretty clean No other feed/fire/eject issues Happens with handloads (90 grain) AND with 147 grain factory FMJs (this is the most puzzling part) This gun has never really locked on last round 100% since I bought it, but the failures were like 1: 200 rounds so it never impressed me as "IMPORTANT FUNCTION PROBLEM!!" or anything This problem has suddenly appeared at this level of severity Yes, I have one new mag, and it does it on that mag too All three mags have been loaded this last 6 months It was wicked hot today at the range (104°) and I was running the gun like a raped ape shooting steel. The pistol got nearly smoking. So do I have three worn mag springs? I'm not limpwristing, my handloads are indeed on the slow side of average (and BOY, are they accurate and nice shooting). Maybe I have a worn slide lock? Any time I've had problems with lockbacks (ALWAYS cheap guns, never quality stuff), it was because the slidelock on a gun was wearing, and this was an easy replacement. Any youse guys ever have a part go south on you on a Glock?