MBX "Ultra Max" Spring & Follower for Sig P320
- 24 ROUNDS WITH 140 EXTENSIONS
Henning Magazine Extension for Factory 21rd Magazine Here
Henning Magazine Extension for Factory 17rd Magazine Here
- 23 ROUNDS WITH FACTORY BASEPAD
IMPROVE YOUR EXTENDED 140 FACTORY MAGAZINE PERFORMANCE WITH MBX “NEW” MBX 'ULTRA MAX' SPRING & FOLLOWER SET FOR FACTORY SIG 320 MAGAZINE
*Note This Product will not lock slide back on last round fired
ATTENTION!
Before Inserting Magazine Into Firearm
New MBX competition follower & spring sets need to be loaded 4-6 times to capacity preventing follower popping out when new , insuring spring set and the follower sits down in tube when new, this avoids any slide contact and damange to spring and follower voiding warranty as the competition follower is NOT held down by the slide stop and has minimal surface area , the competition follower is designed once spring is set to sit 1/4-3/8 below top of feed lips thus avoiding damaging slide contact with follower once magazine is empty.
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