Burris FastFire IV vs UTG OP3 Micro 4.0: specs compared
Updated 05 September 2026.
3
specs differ
Burris FastFire IV and UTG OP3 Micro 4.0 differ on 3 specs: make, model, mounts to.
| Spec | Burris FastFire IV | UTG OP3 Micro 4.0 |
|---|---|---|
| Make | Burris | UTG |
| Model | FastFire IV | OP3 Micro 4.0 |
| Footprint | Docter / Noblex | Docter / Noblex |
| Optic type | open-emitter reflex | open-emitter reflex |
| Mounts to | a pistol slide, adapter plate or a Picatinny footprint mount | pistol slide cut or an adapter plate |
Questions and answers
How do Burris FastFire IV and UTG OP3 Micro 4.0 compare?
Burris FastFire IV and UTG OP3 Micro 4.0 differ on 3 specs: make, model, mounts to.