Ruger 10/22 DuoMag Alangator Duo Mag 77/22 Precision Rifle Magazine Fastener

Description

This is the Alangator DuoMag, made to fit your Ruger .22 LR ten round factory magazines. It fastens two magazines together as shown in the pictures. Now you can have reliably feeding factory magazines with 20 rounds at your quick disposal, without a long hanging banana mag below your rifle.
It fits the 10/22, 96/22, 77/22, and Ruger Precision rifles. This auction is for the fastener device only, not magazines which are pictured to illustrate its function.
The DuoMag was developed and produced by an American veteran who saw tours in Iraq. It is made in America in the great state of Idaho, by American veterans. There is not one molecule of this item which comes from China.
It is easily assembled and here is a link to my demonstration video which is on the TriMag, using similar principle to hold the magazines together:
https://www.youtube.com/watch?v=EU6gJ2uV5eU