Check the listing for details. Allchin C-More Scope Mount (Pre-drilled Solid)- Allchin Gun Parts. Condition: New. Listed at 99.68 USD. Custom Scope Mount for C-More: - With solid siding for additional rigidity - With Blast Deflector Shield (keeps lens free from smoke build-up) - Single Side Mount (allows right side clear for casing ejection) - Easy Scope Mounting (top holes accept C-More Rail or Slide mount with no modifications.) In the Box: - Allchin Scope Mount - Thumb Aid - 5 Mounting Screws - 3 Screws to Attach Thumb Aid This mount allows the scope to be installed the same way other scopes are installed. This allows the shooter the advantage of having nothing on the right side to interfere with the ejection, while all the time maintaining the speed and accuracy of the scope. Installation: Drill five holes, .375" apart with a #38 bit on the left side of the dust cover, close to side stop, then tap to 5x40. This scope mount is square and has no degree of angle. this mount should be installed by a qualified gunsmith.