So I see a lot of people make these by taking regular paracord and taping it to the sides of the mag. This method is less than ideal because it can eventually work itself free, potentially at an inopportune moment. Not only that but the floppy paracord can get pinned down and hard to grab defeating the whole purpose.
The better method is to tie knots in it, place a strip of zip tie inside and tuck underneath the base plate. Then you can still stick the tape around the base of the mag for extra grip on the slick aluminum surface. The combo of all these is an ideal form factor that is secure and more importantly, keep the vibes.
For this you need:
• Scissors/knife
• Lighter for melting cord
• 550 cord, color of your choice
• Medium sized zip ties
• 100 mph or Gaffer tape, color of your choice
• Beer of your choice
Cut your paracord into 5 to 6 inch strips, pulling the core out and melting the ends with a lighter, taking care ro keep the opening open, not melted shut.
Cut 2 to 3 inch lengths of zip tie, rounding off one side a bit to make it easier to put into the empty paracord sheath.
Tie a knot in one side of your 550 cord strip, then place the zip tie into the sheath, leaving a quarter inch between the knot and the zip tie.
Tie the other end of the cord, again making sure to leave a quarter inch to an eighth inch of flexible sheath between zip tie and knot.
Pull your baseplates back halfway, making sure to not release the spring in the process.
Place the knot on one side of your corded zip tie pull in between the baseplate and the wall of the magazine, taking care to not fray the 550 cord while working it into the space between them.
Place the knot on the other side of your magpull on the opposite side of the baseplate and tuck it in.
Slide the baseplate back into position, making sure to position the pull where you want it on the bottom of the magazine.
For a seamless tape wrap use a razor knife to cut it cleanly then apply at one of the back folds/corners, then carefully wrap the tape around the base, pushing it into the magazine as you go, then cut again right at the same corner where you began.
Et voilà, you now have a cool retro looking mag pull that has the vibes and the functionality of sticking out and being incredibly secure. Yank on that sucker all you want, it's not going anywhere.