Ambidextr Hammer Expander - Black 300 - Fits: Most 12 Gauge

- Fits: Most 12 Gauge Mossberg 500/535/590/835

and Side Lens with Scratch Resistant Coating

The hashmarks below zero are 2-MOA wide

- The mount provides a low profile KeyMod mounting surface on three sides of the Receiver Cover

Ambidextr Hammer Expander - Black 300 - Fits: Most 12 GaugeAmbidextrous Hammer Expander Black Features: Ambidextrous Provides easy cocking for left or right hand at all times One Size Fits All TC Contenders and most exposed hammer firearms Easy installation Balanced and lightweight helps prevent uneven wear of trigger and sear surfaces Knurled Body affords positive non slip cocking Use with or without telescopic sights Hard Anodized Finish Limited Lifetime Warranty Proudly made in the USA of the finest