Fits ALL Smooth barrel lengths, Including 18 inch barrels (Fits Mossberg 12 GA 500 / 500A / 590 / 835 / Maverick 88 / Remington 870 / Winchester 1200 / Weatherby PA 459 Reaper)

Fits ALL Smooth barrel lengths, Including 18 inch barrels 

Made of Black Zytel Fiberglass (this is a material that resembles platic)

The weight is only 1.7 oz

Better than metal heat shield

Will not scratch barrel like metal heat shields, Will not rust. Will not melt.

Overall Length is 13.80" Inches

NOTE: Will not fit short "Breacher" model shotguns or 590A1 Or 590 Heavy Barrel model or mossberg shockwave