SIG Sauer P320 Threaded Barrel, 4.6″, 1/2 X 28 Thread Pitch – Black Nitron Published October 5, 2022 at 1020 × 1200 in SIG Sauer P320 Threaded Barrel, 4.6″, 1/2 X 28 Thread Pitch – Black Nitron SIG Sauer P320 Threaded Barrel, 4.6″, 1/2 X 28 Thread Pitch – Black Nitron ← Previous Next →