All Charles Daly pump shotgun receivers are machined from solid bars of aluminum alloy to create a lightweight yet exceptionally strong and versatile shotgun that will handle 2 3/4" and 3" shells reliably. The 3 1/2" receiver is not a 3" receiver built and modified for 3 1/2" shells, but has been built from the ground up to be a 3 1/2" chamber. Interchangeable barrels are machined from Chrome-Moly steel, guaranteed to withstand steel shot and the extra power of a 3 1/2" load. The VR-MC models feature ventilated ribs and come standard with 1 multichoke tube. The Maxi-Mag models feature factory porting that reduces perceived and felt recoil. Recoil pads and quick detachable sling swivel studs are supplied with every Daly pump shotgun.