3D Printed 12 Gauge Shell Insert — fits 2 3/4” & 3”–3½” shells Tired of shells rattling around in your pack out? This custom printed insert keeps all 96 shells organized and secure. ✅ Fits 2 3/4” or 3”–3½” 12 gauge shells ✅ 96 shell capacity ✅ Designed for pack out model 48-22-8435 ✅ Insert only (pack out not included)