Leupold Mark 4 DP Pro Ring Top 34mm The DeltaPoint Pro red dot's versatility just got taken up a notch with our ring top mounts. Whether it's on a long range rifle to find targets faster or a CQB setup for quick engagements the ring top mount adds a new dimension to any setup. It easily attaches the DP Pro to any of our Mark 4 rings or Mark IMS mounting systems letting you run it up top or at either side at a 45 degree angle. The possibilities are endless. - Available in 1 inch 30mm 34mm and 35mm sizes - Compatibale with Mark 4 rings Mark IMSAR and Mark 4 IMS mounts