ProMag PM237B Magazine Quick Change Adapter Block made of Polymer with Black Finish for 9mm Mags to fit AR-15 Lower Receiver $52.39
Mec-Gar MGPBC15AFC Standard 15rd Detachable w/Finger Rest 9mm Luger Fits Beretta 92 Compact Blued w/Anti-Friction Coating Carbon Steel $26.12
Strike Industries EMPCTP9 Magazine Extension Kit +5rd Made of Black Polymer for Most Canik TP9 $19.95
Black Rain Ordnance MAG30LETITRAINB Magazine 30rd 223 Rem/5.56 NATO Let It Rain Bullet Engraving Fits AR-15 Platform $21.00
Walther Arms 2835088 Magazine Extension for 9mm Luger Walther PPQ Magazines (Adds 2rds) Black Machined Aluminum $46.26
Springfield Armory XDS5002FDE Backstrap Sleeve 45 ACP Fits Springfield XDS Flat Dark Earth Polymer $11.92