M3 Extensions

[steel-plate]

Is there a special model of extension to add capacity to a M3S90? Or can you use a regular M1 model.

 

Thanks

[STA]

Yes, there was a M3 specific extension.

 

"80204P- 2 Shot Magazine Extension, Matte Black - fits M3 ONLY, 12 Gauge"

 

Good luck searching for one.