The MC312 Sport is the first reasonably priced 3-gun production 12GA shotgun out of the box with the following standard features: enhanced loading port for quad loading fully machined receiver with low profile accessory rail (no turkey neck) improved controls red mag tube follower for visual empty chamber status common mag tube cap threads for the upgrades you desire factory wide view red dot optics pistol grip stock for greater control raised vent rib for faster swing large fiber optic front sight mid bead rubber butt pad rotating bolt inertia action 24