SD Putzzeug - Cleaning tool designed for the B&T SPC-9 SD, PDW SD, and SD-E

• Specifically designed for B&T SPC-9s, including the SD, PDW SD, and SD-E
• Cleans the barrel ports, external barrel, and suppressor mounting threads without removing the handguard (SD-E requires handguard removal).
• Includes two (2) interchange heads

1. Brush head with five (5) Otis .270 cal. brass brushes
2. Mop head with five (5) Otis .270 cal. cotton mops

• Nonmarring brass brushes allow for aggressive cleaning without damaging barrel finish or the fine suppressor mounting threads.
• Cotton mops can be soaked with solvent and washed with tap water or isopropyl alcohol.
• User-selectable and -serviceable brush configs—any combination of Otis .270 cal. brass, nylon, and cotton
• Head geometry locks and unlocks brushes/mops into their slot via 90° rotation
• Toolless head changes, finger tighten to friction lock
• Engineered as a tool for life—if you ever manage to break a head or handle, its replacement is on us.

The Putzzeug, German for "cleaning tool", is designed with dissimilar polymers to handle the peak loads experienced by each part. The birdcage style heads are made out of PPA-CF for maximum strength and stiffness, whereas the handle is made from tough PETG-CF to accommodate the inter-layer forces. The head remains concentric via the conical shoulder, which also provides a friction-lock from only finger tightening. If overtightened, the heads include wrench flats to facilitate removal. The tips of the brushes/mops are retained within slotted ovular pockets such that, when in use, they rotate 90 degrees to their lowest stress state, effectively locking them into the head. Finally, the Putzzeug features the Lattice Tactical design motif of external isogrids, geometry optimized for its strength-to-weight ratio and traditionally relegated to the aerospace industry.