Genuine OEM Replacement Part 163848 New, bulk packaged Compatible with Stanley Bostitch Fasteners Please refer to list below for compatibility What's included : (1) Replacement Stanley Bostitch Stick Nailer Replacement MACHINING FRAME CAP 163848 Compatible with the following models: F21PL Pneumatic Stick Nailer, F21PL2 Pneumatic Stick Nailer, F28WW Pneumatic Stick Nailer, F33PT Pneumatic Stick Nailer, N89RH17 Pneumatic Stick Nailer, N89C Coil-Fed Pneumatic Framing Nailer, N89RH17-2MCN Pneumatic Stick Nailer, N89C-1P Type 0 Heavy Duty Pallet Fence Nailer