The Mossberg 590S Shockwave: 12 gauge pump with an 18.5″ cylinder-bore barrel that cycles 1.75″ mini shells (9+1), 2.75″ (6+1) and 3″ (5+1) without an adapter, Raptor bird’s-head grip, strapped corn-cob forend, bead front sight and tang safety. No factory optic. Manufacturer part number: 51600.
Key features
- 12 ga 590S Shockwave; 18.5″ barrel
- Cycles mini / 2.75″ / 3″ shells
- Up to 9+1 with 1.75″ mini shells
- Bird’s-head grip; strapped forend
- No factory optic
Buying from PM Customs in Yukon
PM Customs is a licensed FFL in Yukon, OK, serving the Oklahoma City metro. Choose local pickup by appointment (generally Mon–Sat, 8 AM–4 PM), or have your Mossberg 590S Shockwave 18.5 shipped to your local FFL. You pick at checkout. Questions? Call 405-265-8955.
