1 Mossberg 88 Special Purpose 12 Gauge Shotgun. ... 2 Winchester SXP Defender 12 Gauge Pump Shotgun. ... 3 Mossberg 590 Shockwave 12 Gauge Pump-Action with 14 inch Barrel. ... 4 Citadel Boss-25 12 Gauge AR-Style Semi-Automatic Shotgun. Are Stoeger shotguns quality? Conclusion. The St...