Mossberg 590A1 12 Gauge
Model: 51663
Mossberg 590A1 12 Gauge
Model: 51663
Full Specifications
About This Firearm
The Mossberg 590A1 is a Parkerized pump-action 12 gauge built for duty and home defense. It has an MSRP of $910. It is the 590 built to Mil Spec, with a heavy-walled barrel, a metal trigger guard and a metal safety button where the 500 and the 590 use polymer.
It arrives sighted, with an adjustable ghost ring at the rear and a post up front, so slugs can be put where you want them with nothing bought. The magazine holds nine rounds behind a 20-inch barrel. Nothing on the stock adjusts and the length of pull is fixed. The receiver is anodized aluminum like the rest of the line, so the Mil Spec work went into the barrel and the metal furniture and not into a steel frame.
If you're cross-shopping, the Mossberg 590 has an MSRP of $592, $318 less, with seven rounds behind an 18.5-inch barrel at 100.8 oz, and a bead where this gun has ghost rings. A Remington 870 Express has an MSRP of $540 and a steel receiver at 120.0 oz, 4.0 oz over the 590A1's 116.0 oz, and it holds four rounds, so the Mossberg's five extra shells cost almost nothing in weight.
Best For
Strengths & Limitations
- Non-binding twin action bars, positive steel-to-steel lockup, an anti-jam elevator and dual extractors are the 500 action underneath, so parts and gunsmithing knowledge are everywhere.
- The trigger guard and the safety button are metal, and those are the parts worked with a gloved thumb and knocked against a door frame.
- The magazine tube takes a clean-out cap at the front like the rest of the 590 line, so the spring and follower come out for cleaning.
- Nothing adjusts for fit, so a smaller shooter or anyone shooting in a winter coat is buying furniture.
- Loaded with nine shells the weight climbs well past 116.0 oz, which tells during a long class.
- A buyer who will shoot buckshot and nothing else pays for ghost rings they will not use, and the plain 590 covers that job for less.
Ballistics Calculator
Calculate trajectory, drop, and energy for 12 Gauge ammunition.
12 Gauge Ballistics →Frequently Asked Questions
What shells does it hold nine of?
Standard-length shells. The chamber takes three-inch loads too, and those drop the tube by one.
What is the barrel choked to?
A fixed cylinder bore, with no constriction and no threads, which is generally what a buckshot gun wants.
Is the safety usable left-handed?
Yes. The top-mounted safety is ambidextrous across Mossberg's pump line, so either thumb works it with nothing replaced.
