Quick change drum set for products: 90811 Auto-Drum Powder Measure and 90453 Quick Change Drum Set.
Please note, the AM2974B large piston requires large o-ring and AM2974E small piston requires small o-ring.
AM2974A LARGE NYLON DRUM
AM2974B LARGE PISTON
AM2974D SMALL NYLON DRUM
AM2974E SMALL PISTON