FM Optics FMO Showing the single result Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sale! IN STOCKFM-Products FMP9 9mm, 5″ Threaded Barrel, Glock Mags, Sylvan Arms Adapter, Black $799.99 Original price was: $799.99.$719.99Current price is: $719.99. Add to cart