The 590A1 is Mossberg’s mil-spec pump, built to MIL-SPEC 3443G with a heavy-walled barrel, metal trigger guard and safety, and a clean-out magazine tube. Ghost-ring sights speed up target acquisition for home defense or duty use, and the drilled-and-tapped receiver accepts an optic if you want one later. Twin action bars and dual extractors are the usual Mossberg reliability package.
Key features
- 12 gauge, 3″ chamber; 8+1 capacity
- 20″ heavy-walled Parkerized barrel, cylinder bore
- Ghost-ring sights
- Metal trigger guard and safety; clean-out mag tube
- Black synthetic stock; 13.87″ LOP
- Drilled and tapped receiver; dual extractors; twin action bars
- 41″ long; 7 lb (Mossberg spec for 51663)
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 590A1 shipped to your local FFL. You pick at checkout. Questions? Call 405-265-8955.






