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Tech index -> Custom Work -> Invert Mini foregrip accessories

A simple idea to lengthen the distance between the foregrip and the frame. The concept was brought to my attention by a viewer of my youtube videos (then again by another player a few months later). I initially thought this would be an easy project but once I drew up the preliminary design I realized it wasn't quite that simple in reality. Having said that, I believe my answer to be worthy. I toyed with the design from several different angles, and eventually arrived at a solution that is both reliable and easiest to manufacture (IMO).
· Extends the foregrip forward over an inch.
· Drop-in upgrade that requires no marker modifications.
· Uses the foregrip's dovetail design to allow quick and easy removal of the grip.
· Includes a circuit "bridge" board, housed internally.
· Mounts to the transfer plate screws for stability - this also allows the greatest gap between the extender and trigger guard.
· NOT compatible with Empire Axe (not yet anyway)

Straight version:
This extends the foregrip 1.15 inches forward. Here's the "version-1" design along with its prototype part:

I finally got around to producing these in June of 2011. I had to make a few small changes, but they were mostly just alterations to the final surface finish which was a byproduct of the machining process. Here's how the final versions look: (the below picture shows a pair of blasted black and a pair of glossy black)

Empire Axe version:
Ever since people started discussing the Mini foregrip extender (above) people asked if they could use it on an Axe. The funny thing is Axes already locate their foregrips an inch forward compared to the previous Invert Mini markers. So it would seem people just want an extended grip on either marker.

Due to this demand, I will probably come up with a new version of the straight extender that is also compatible with Axes too. This version will hook onto the trigger guard's dovetail so it will be universal to both markers. However, this will reduce the space behind the foregrip. It's better than nothing, though.
Coming soon!

Angled Forward version:
This variant extends the foregrip 1.2" forward at the top, but also angles it 15 degrees forward.

This angled version will likely be more expensive than its straight counterpart, since the angled components are almost twice as intricate to produce. It requires additional setups on the CNC machine, twice the internal electronics, and more labor to fabricate. I will make these available too, but I'm not sure when this will occur.

Angled Rearward version:
Well this was the next inevitable step!

This one is my personal favorite, but it's even more complex than the angled-forward version. Again, I can make these available too, but let's just do one thing at a time!

Production; Availability:
After prototyping, I sent out my feelers to see what people thought of the idea and if they had any suggestions. It seems that many people appreciate the idea, or at least wanted it to be available for future purchase, so I set about preparing the machines for a production batch.

The design has stayed very close to the prototype in the above picture, however I have made it slightly more ergonomic while at the same time beefing up the design to increase strength. I decided to stay with a medium-strength aluminum alloy to ensure the foregrip extender be the first thing damaged in case of force problem (tripping accidents while holding the marker, etc); this way the marker will hopefully remain undamaged, thereby transfering all the damage into the foregrip extender. The extender can be replaced much easier and cheaper compared to the body or transfer plate.

You can find my "current" array of extenders (whatever that is at the time you're reading this page) on my sister-site Nummech.com!

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Tech index -> Custom Work -> Invert Mini foregrip accessories