6-round, 12-round, and the necessary parts to make a magazine for a CMMG AR-15 .22lr conversion. (Replacement parts are compatible with CMMG oem!)
You will need a set of each below for each magazine you make.
- x4 M3 x 16mm Socket Head screws (or if you're feeling paitient and adventurous, super glue.)
- x1 Replacement 10/15 Round Magazine springs from Black Dog Machine LLC
- x1 medium/fine grip sandpaper or filing pen
You may also benefit from having some 11" long 0.370" OD .312" ID .022" DIAMETER APPROXIMATELY 50 COILS Spring handy.
- Print each side of the magazine inside face-up on your print bed.
- Print the follower, baseplate, and baseplate lock.
- THROUGHLY remove any supports, especially on the feed lips of the magazine. Be careful not to shave off or alter the lips in any way.
- Likewise, clean off any supports for the replacement parts.
- File off the TOP of the follower until it is smooth. (This is important, as the rounds may snag on the steps of the follower.)
- Piece together your magazine sides with the socket head screws.
- Slip the follower into the magazine first, then spring, then baseplate lock.
- While keeping pressure down on the baseplate lock, slide in the baseplate until the lock engages the plate.
MIT License.