Well i built my 1st ultimate and i took it to the range today. Loaded up the mag and put it in the gun pulled back the slide and took my first shot. Then pulled the trigger again and nothing. I pulled back the slide again their was a round in the chamber but the hammer didnt fall. I did the jb weld trick put in a volquartsen hammer with the shims i did not use the spring that came with the hammer does anyone know what could be causing this? Do i need to sand off more of the jb weld? I have a weapon craft bolt buffer volquartsen extractor thumb hole stock greenmountain barrel flutted stainless pc base burris sig zee rings leupold 3x9x50 scope sure would like to get this baby dialed in. Ty in addvance for any feed backs.