First thing, if you haven't checked out Karas Kustoms, you should.

My main appeal to these pens is not just that they look amazing and are high quality, it's the guys behind the curtain making it happen. Being a local Phoenician, I have the privilege of popping by the shop to pick up a pen for myself or a friend wherein I get the opportunity to chat with Bill, Dan, and the crew on their latest projects, business, etc. Seriously, a group of top notch guys that love designing, creating, and manufacturing their own awesome stuff. In house!

This particular Render K is kind of a unicorn. In talking with Dan, the guys were experimenting with various materials and an acetyl plastic called Delrin was one of their choices.

The plastic machined so well and has an extremely smooth finish. It is actually quite amazing how well it did in relation to it's aluminum and brass cousins. Feels great in the hand, and unlike the metal versions, the cap actually posts. This isn't a deal breaker for me at all, but to some people a cap has to post. I believe it is due to the flex in the plastic as opposed to the rigidity of the solid metal. Since the pen is so light, posting the cap adds no uncomfortable weight to the back whatsoever. I didn't get out a scale or anything, but I'd bet the delrin Render K is probably less than half the weight of the aluminum version.

Overall, a great, unique pen from the guys over at Karas that I'm glad to add to my collection!

Karas Blog Post - Special Render K Versions

The history behind the AG7 was part of the appeal that drew me to wanting one, but Fisher makes a great product. These were, and are, the pens that are taken into space and to the moon due to the pressurized cartridge system. This allows you to write upside down or in zero gravity (although I've never needed it for either of these scenarios...)

hese babies usually run $50 retail, but I was able to pick one up for a steal on eBay for $28 with free shipping...no brainer! They are made of solid brass and are finished in a shiny, mirror-like chrome.

If you've never written with a Fisher cartridge, the ink is smooth and not overly globby for a ball point. The most fun with this pen has to be the "dual-action" knock mechanism. To extend the tip you push the knock at the end and to retract, push the small side button which pops it back. This motion is actually quite fun, but I'll warn you, could become annoying to co-workers or innocent bystanders. It isn't really a quiet click.

The pen has is somewhat slender, but even with larger hands as I have it doesn't feel uncomfortable in the least. I enjoy the grip section where there are rings milled into the pen which adds a nice design element to it.

Cons: fingerprints. With the chrome finish, I feel like I'm always taking a tissue, or my shirt, or something to wipe off the prints.