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.
•No spacer required for 9mm/.38 magazines.
•Restrictions apply in some states.