“NEW” MBX 'ULTRA MAX' SPRING & FOLLOWER SET FOR SIG 320

MBX IS NOW TAKING YOUR FACTORY SIG 320 MAGAZINES TO THE HIGHEST LEVEL OF PERFORMANCE & INCREASED CAPACITY

“NEW” MBX 'ULTRA MAX' SPRING & FOLLOWER SETS FOR SIG 320

- 24 ROUNDS WITH 140 EXTENSIONS

- 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




HENNING 140 EXTENDED BASEPAD FOR FACTORY SIG 320 TUBE

*24 ROUNDS WITH HENNING BASEPAD


“NEW” REPLACEMENT SIG 320 SPRING FOR YOUR MBX SIG 320 'ULTRA MAX' FOLLOWER



*For Use in Conjunction with MBX Ultra Max Follower Factory SIG 320 Tube & 140 Extension for 24 rounds

*IS NOT DESIGNED TO FIT ON FACTORY FOLLOWER




“NEW” REPLACEMENT SIG 320 FOLLOWER FOR YOUR MBX SIG 320 'ULTRA MAX' SPRING



*For Use in Conjunction with MBX Ultra Max Spring Factory SIG 320 Tube & 140 Extension for 24 rounds

*IS NOT DESIGNED TO FIT ON FACTORY SPRING

*Note This Product will not lock slide back on last round fired