Blackside View cart “GEMTECH BLACKSIDE .45 Threaded for Sig Sauer .45” has been added to your cart. 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 STOCKGEMTECH BLACKSIDE .45 Threaded for Sig Sauer .45 $479.99 Original price was: $479.99.$431.99Current price is: $431.99. Add to cart