TRINITY 12 Gauge Shell Carrier for Mossberg 590 Shockwave Side Saddle 6 Round Holder Maverick 88 500 590Keep your ammunition within reach with the TRINITY 12 Gauge Shell Carrier, designed for secure retention, quick access, and reliable performance. Built for compatibility with Mossberg 590 Shockwave, 500, 590, and Maverick 88 platforms, this side saddle provides a practical and durable solution for carrying extra shells directly on your receiver. This shell holder securely accommodates up to 6 rounds of 12 gauge ammunition, ensuring they stay firmly in