MTRS Pro Series 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.

What a pleasant surprise this one was. I was about to buy the GGG brand one, but read about some flex/durability issues. I stumbled across this while browsing Amazon, and at first I thought it was a UTG/Chinese junk part. Nope. Texas company who stands by their gear, and it installed quick and easy, and does a great job of holding a light and acting as a sling mount both. And its low profile enough to not look stupid and bulky. Perfect accessory to finish off my 590 SBS. Thanks guys. Great product.

Very solid, great price. Fits pet

Probably the best product you will find to mount things onto a shockwave. Install was easy and only took a min. Removed one star just because the pain of having to place a little rubber sticker inside for it to fit right, and the sticker not being sticky enough to stick while you put it together. Doesn’t seem to interfere with the action.

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.

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.

I originally reviewed this item very carefully before purchase. After installing it to my Mossberg 590 Shockwave and found it is exactly as advertised and appeared, sturdy, compact and easy to install. However, the first time at the range and after firing two rounds of 00 Buck, the screws separated from the body of the mount and the mount fell from the fore end of the magazine along tube with my Streamlight TLR-2. COMPLETELY WORTHLESS and for the price, the biggest rip off I have endured in a long time. I definitely would NOT recommend this item to anyone at any price. Not as advertised.

The maker of this product, CDM Gear, is now aware of this issue, and intends to amend the item description. This mount, despite how VERY well made it is, will NOT fit the 12g 590 Shockwave variant with Walnut furniture, the “590 Nightstick.” The gap in front of the Nightstick’s pump handle, where it is intended to be installed, by design, is apparently too narrow on the 590 Nightstick. Such a shame, as it appears to be an OUTSTANDING mount for the “polymer furniture” version of the Shockwave. I still gave it 5 stars, despite it not working for me… that’s how nice it is. And CDM/ Amazon was nice about it, and allowed the return.