FAB Defense FXPRMO PRMO Rail System for Mossberg 500 590 Shockwave Maverick 88 7.91 OAL Black Reinforced Polymer

The pr-mo mossberg 500 rail system offers a superior mounting solution for your mossberg accessories.It is constructed of reinforced polymer with a state-of-the-art design and three picatinny rails.This model has a black finish.It is compatible with 12 gauge mossberg 500 590 shockwave and maverick 88 ( maverick 88 requires purchasing separately a mossberg 500 7-3/4" action slide).Note: this model will not fit the mag-fed versions nor will not fit the 14" barrel versions.Rails: PicatinnyType: