Great product - Pro Mag AR-15/M4 Polymer Quad Rail Carbine Handguard PM242

I purchased this to upgrade the BCM M4 style handguard I had on my M&P15 Sport 2 so I could upgrade it into a home defense/SHTF rifle and start adding attachments. It is built solid, fits nice and tight on my rifle with no wobble at all. Unlike many of the all metal quad rails it added little to no extra weight to he front end of the rifle. It has the benifits of having the heat shield, which to me is a must have on polymer handguards after the original handguard that came with the rifle began to melt from the heat of being fired. The Picatinny Rails are standard size. Overall it is a solid made product with an affordable price point the will last for years to come.