Warne MEG1954DE Magazine Extension made of 6061-T6 Aluminum with Hardcoat Anodized Flat Dark Earth Finish for Glock 19, 23 Magazines (Adds 5rds 9mm Luger, 4rds 40 S&W) $44.99
Shield Arms SAS15ME5RED Magazine Extension 5rd Compatible w/ Shield Arms S15 Magazine, Red Anodized Aluminum $35.99
Warne MESIG54BLK Magazine Extension made of 6061-T6 Aluminum with Hardcoat Anodized Black Finish for Sig P320 Magazines (Adds 5rds 9mm Luger) $39.99
Pearce Grip PG11 Grip Extension made of Polymer with Black Finish for Taurus PT111 & Kel-Tec P11 $6.99