Don't need coupler imo. I ran my with just paint cover tape (2 layers or so) and then electrical/duct tape on top (cut to fit and do few round) firm as hell on my MFT/E-lander 10rders I even use them at 2Gun match. I cover paint cover tape first because it won't leave nasty residual like electrical/duct tape. I have the GS Design extension for all my CPD LAR15 but just because I have ordered them a long time ago.
USGI ranger plates will work and are a lot more ergonomic and faster than trying to juggle a coupled mag.
Don't need coupler imo. I ran my with just paint cover tape (2 layers or so) and then electrical/duct tape on top (cut to fit and do few round) firm as hell on my MFT/E-lander 10rders I even use them at 2Gun match. I cover paint cover tape first because it won't leave nasty residual like electrical/duct tape. I have the GS Design extension for all my CPD LAR15 but just because I have ordered them a long time ago.
Don't need, but want them regardless.....I have one GSdesigns, just want to see if there is anything else out there before I buy more of the same
just ordered 2 of the GSdesigns ones, are they any good?
USGI ranger plates is the way to go. Easy to grab onto, easy to use as a shooting rest and great to tap home a closed bolt.
You may find getting that last round in a bit tight once the Ranger Plate is attached so while you have them disassembled, sand down the follower legs 1-2 mills.



























