I hope my case is an isolated issue and not a military/ LE recall but... I recently purchased my first SIG- a P320. After reviewing the owners manual I performed 1/2 dozen field strip and re assembly drills with mixed results. Two times the receiver hung up about 1/2" from full battery. Corrected with minimal effort. After 1st session at firing line (45 rnds) I field stripped, cleaned and reassembled without incident. Day two @ firing line I concluded after 12 rounds i needed a) more practice and b) sight adjustment. FS & C again and tried to reassemble without success. Unidentified lever @ rear of FCU bent. Sending gun back to SIG. Anyone else have this problem?