CMMG Bolt Case

thingiverse

General Description: This case is specifically designed to hold the CMMG 22LR conversion bolt for an AR-15, also serving as a regular Bolt carrier group case. The Bolt fits almost perfectly with minimal wiggle room. To achieve more clearance for the bolt, you can scale up the design by 1-2%, but be sure to make corresponding adjustments to the lid to maintain proper fitment. Printing: The print time for both the lid and base is approximately 16 hours at a resolution of 0.2mm, with no supports required. I recommend a wall thickness of 1.5mm to 2mm and a solid design for the base. The infill used is 20%. To prevent warping, ensure that the part adheres well to the bed; I use regular glue sticks on my glass bed.