The Worker Modular Threaded-Breech Barrel Set is a tuning kit of CNC-milled aluminum barrels. Featuring a 16mm OD threaded end, this barrel set is compatible with Seagull, Kunlun, and Harrier, as well as select other blasters with a 16mm threaded breech. Additionally, each of the three segments in this set has progressively narrower inner diameters, enabling toolless performance tuning across different lengths and bores. FEATURES:• Worker Modular Threaded-Breech Barrel Set• CNC-machined segmented aluminum barrel kit• For blasters with an M16x1mm threaded breech• Up to 326mm barrel length with one kit• Bore as tight as 12.7mm ID • Compatible with Worker Seagull and Kunlun• Not compatible with Unicorn or Kirin blasters INCLUDES: • 1 13.0 x 86mm threaded-breech barrel base• 1 12.9 x 80mm barrel module• 1 12.8 x 80mm barrel module• 1 12.7 x 80mm barrel module SPECS:• Material: Anodized Aluminum• Dimensions: • Collapsed: 64mm x 86mm • Assembled: 16mm x 326mm• Weight: 50g• SKU: W0745 WOR MOD BARREL SET LINKS:• Worker Seagull• Worker Kunlun• More threaded barrels• More Barrels