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Most people know the Shockwave by its stubby 14 inch profile, but this version, model 50639, stretches the heavy-walled barrel out to 18.5 inches and picks up an extra round in the magazine tube for a 6+1 total capacity. You keep everything that made the original such a hit: the Raptor bird's head grip that rolls recoil through your hand instead of slamming your wrist, and the corncob forend with a hand strap that keeps your support hand planted and clear of the muzzle when you're running the pump hard.
Underneath the distinctive silhouette, this is the same 590 action that's been earning its keep for decades. Dual extractors, twin action bars, positive steel-to-steel lockup, and an anti-jam elevator keep it cycling smoothly whether you're feeding it 2.75 inch birdshot at the range or 3 inch buckshot for serious work. The tang-mounted safety sits right under your thumb and works the same for lefties and righties, and the magazine tube has a clean-out cap that makes maintenance quick. A simple front bead sight and cylinder bore keep the whole package rugged and fuss-free.
The longer barrel does more than add capacity. You get a longer sight radius, a bit more velocity out of your loads, and slightly tighter patterns at typical defensive distances, all while the bird's head grip keeps the overall length compact enough to tuck behind a seat or stand in a closet corner. At around 5.5 pounds, it carries easy and points fast.
The matte blued finish is classic Mossberg, understated and durable, and the receiver is drilled and tapped if you ever want to add an optic rail down the road. Fair warning: a 12 gauge in this format has some personality, so start with lighter loads while you learn the push-pull technique. Once it clicks, this thing is genuinely fun to run and dead reliable when it counts.
This model 50639 runs an 18.5 inch heavy-walled barrel instead of the 14.375 inch tube, which bumps capacity from 5+1 to 6+1 and gives you a longer sight radius. You still get the same Raptor bird's head grip and strapped corncob forend, so it keeps the Shockwave feel while adding a little reach and an extra shell.
It has a 3 inch chamber, so it will run everything from light 2.75 inch target loads up to full-power 3 inch magnum buckshot and slugs. Being a pump gun, it cycles low-recoil and reduced loads without any fuss, which is a smart place to start while you get used to the bird's head grip.
Yes, the receiver is drilled and tapped, so adding a Picatinny rail for a red dot is a simple job. There's also a huge aftermarket for the 500/590 platform, including side saddles, heat shields, and replacement forends, so you can set it up however you like.
It has some bark, no way around that with a lightweight 12 gauge, but the Raptor grip is shaped to direct recoil back through your hand rather than snapping your wrist. The forend strap helps you use a push-pull technique that tames it considerably. Most folks find it very manageable with standard loads once they've put a box or two through it.
| UPC | 015813506397 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 50639 |
| Action | |
| ATF Type | Pistol Grip Firearm |
| Barrel Finish | Blued |
| Barrel Length | 18.5" |
| Caliber/Gauge | 12 Gauge |
| Capacity | 6 + 1 |
| Chokes Included | C |
| Color | BLUED |
| Length | 33 |
| Model | |
| Package Height | 2.6 |
| Package Width | 7.8 |
| Product Type | Shotgun |
| Safety | Ambidextrous Top Tang |
| Shipping Weight | 7.2 |
| Sights | Bead |
| Sights Type | Fixed Sights |
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