Specifications:
* Representing the U.S. Military, the M4 series pens have a pocket clip, nose tip & tungsten carbide ballpoint tip* All Brass and steel construction and extremely versatile
* Pressurized thixotropic ink cartridges are hermetically sealed & write 3x longer than ballpoint pens
* Reliably performs in extreme temperatures (-30F to +250F), underwater, in zero gravity, at any angle
* Precision assembled & hand-tested with a lifetime guarantee against all manufacturing defects
| Category | Office Product |
| ASIN | B08MV92GFB |
