MBX Extreme Follower Kits

MBX Extreme's Ultra Max Follower Kits for competition shooting offers up towards 24 + 1 capacity when used in combination with our H141 Magazine Extensions. If you already bought our extension and wish to increase magazine capacity further, these follower and spring kits are made specifically to do that. We offer them for the following magazines:

• STI 2011
• Glock (for G17, 34 9mm magazines)
• H140 Front Pin - this includes Magwell Ready extensions for Sig P320 Pro Carry, H300-P320 Plus 2, CZ Shadow 2, CZ Tactical Sport, Canik Rival-S, Canik Rival Poly
• H141 Front Pin - this includes Carry Optics extensions for Sig P320 (H141-P320, H600-P320), CZ Shadow 2 (H141-MC17), Canik TP9 (H141-TP9), 

MBX EXTREME FOLLOWER KITS WILL INCREASE THE CAPACITY OF YOUR MAGAZINES, BUT THEY WILL NOT LOCK THE SLIDE OPEN ON AN EMPTY MAGAZINE.