MBX STI Competition 140mm 40 S&W/10mm 20 Round Magazine
MBX Complete Tubes were designed to be competition ready with exclusive features to meet the highest demands for today's shooters.
• This is for competition use and will NOT lock back the slide.
•Made from Heat Treated 410 Stainless for Ultimate Durability.
•Witness holes on rear of tube to indicate round count for all tubes.
•Restrictions apply in some states.
Posted by Joe on Apr 3rd 2017
Bought these with my STI Edge. Follow the directions and load them to capacity and let them set. They have been absolutely flawless.
Posted by Eddie on Mar 1st 2017
These mbx magazines come ready to go! The base pads remove easily and they hold 20 rd of pure excitement! What's there not to like