Light Mount with 3-Slot Side Rail, Compatible with Mossberg 590 Shockwave 12 or 20 Ga

I like the ease of installation and it fits perfect. I recommend a 45° offset rail mount to provide clearance on the pump handle action. Choice of mount angle and light will affect the fit with shorter barrels.

Seems like a solid product. You can tell that whoever designed this knew what people wanted for an accessory mount.My only gripes are the finish color and the very small interference between the forearm slide and the rail that came with the light I chose. I'm guessing others could have the same problem even if they fit a different light... since the fit/size of a rail will be close no matter what.The finish color or shade does not match the 590S Shockwave barrel, magazine tube, forearm slide or magazine cap. I think that's something that should be considered in any future design revisions. Easy improvement to the aesthetic.The forearm slide interference (again, from a light/rail add-on that i chose to go with) does not prevent the cycling of shells at all, but it does leave a very very small dent. I'm not particularly worried about it, but that could bother some people.As you can see in the pictures I include with this review, I went with a TLR-1 HL from Streamlight.

This product worked as advertised.I watched a simple video instruction and it worked like a charm.I would recommend this product to everyone who is a "do-it-yourself" kind of person.Manufactured from aircraft grade aluminum and hard coat anodized it is a superior mounting solution for those with limited space mounting requirements. One tool for one bolt is all that is needed to attach and remove the clamp.Fits Mossberg 590 Shockwave 20 gauge.

Goes on easy, seems sturdy and we'll machined. I just wish it came without the sling loops - they add too much bulk I didn't ask for. But still the best option for the shockwave.

Fits very well and holds my light very nicely.

The product installed very nicely and the quality was great. I ended up grinding off the two strap rings since they took too much space for my storage conditions. The light rail mount is very sturdy and held in place with both a compression pin and screw. Love it.Update: the light mount held up very well at the range. Very sturdy.

I would give it 6 stars if I could. Mounts very easy, stays put after running high brass loads, looks good and is a must-have to mount a light on a Mossberg Shockwave. I have the GG&G mount on my other Mossbergs but this design is much stronger. Do not hesitate if you want to add a light and/or sling mount to your Shockwave.

This is great for value, is easy to install and sturdy BUT does not work with the shockwave 12g like it’s made to do! I can not cycle! It won’t lock in. It’s to thick and will not allow the gun to to cycle to shoot.