I have a dilemma between these two.
21SF Pros:
- Better grip
- Ambi release
- Picattiny rail
21SF Cons:
- Heavier
- Bulkier
- The size is not ideal for me
30SF Pros:
- Lighter
- Best size for me
30SF Cons:
- Grip is not ideal. Need to install Pierce Grip extensions
- No ambi release
- Inferior rail type
21SF Pros:
- Better grip
- Ambi release
- Picattiny rail
21SF Cons:
- Heavier
- Bulkier
- The size is not ideal for me
30SF Pros:
- Lighter
- Best size for me
30SF Cons:
- Grip is not ideal. Need to install Pierce Grip extensions
- No ambi release
- Inferior rail type


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