So far as we can tell, this is the first manufactured Mossberg 500/590 quad rail produced and what a great piece! This Mossberg rail is the last word in quality accessorizing.
Prepare to be blown away, because this is the real deal. As you can see by the pics, the piece is beautiful and entirely functional. The piece now allows any accessory that can fit on a rifle to now be mounted on the Mossberg 500/590. Even the 590A1! The RB7M quad rail system features:
One piece T6 6061 construction
Small 14 ounce weight!!
Type 2 black anodizing
Full install kit with tools
Serial number remains visible! In many states it's a crime to obscure the serial number of any firearm, and our rails do not obscure the serial numbers whatsoever!
Normal retail is a whopping $269-$359 on rails that are far heavier and are of less quality!!
Mossberg 590A1 pictured is not for sale.
Here's the best part. These items are made in America! We support American companies and American workers!!!
No gunsmitthing required! This rail will fit both tapped and untapped receivers, both. Install time take under 10 minutes from the time the rail is removed from the box to the time the shotgun is ready to fire. We even supply the tools and instructions! Bayonet lugs on the 590A1 should be lightly narrowed for the best fit. Oem heat shields should be removed as our rail replaces it. 20" barrel is shown. We recommend an 18" minimum barrel length. Works with both shorter and extended mags! The clamps will not fit a breacher barrel, however. The barrel is too large for the clamps to grip properly.
*** A side note. The clamp system in this kit sees 100% of the shock associated with every round fired. It is of the utmost importance that the clamp be as tight as possible so as not to move backwards. Loctite and frequent checking of the clamps is recommended. If the clamp works loose, all of the energy is transferred to the pins and screws, which are not meant to see that level of shock. ***