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Semiauto Rifles Gallery Post pictures of your rifles and carbines here!

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  #1  
Old 05-04-2011, 9:56 PM
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Talking G Lock's Featureless Grip fin

I wanted to make a featureless fin grip but I diddnt like the idea of a dedicated grip using epoxy to attach the fin on, so i came up with this. Basically the retention system consists of a slit on the fin and a cotter pin placed perpendicular to the wall of the pistol grip. This secures the fin such that it cant be pulled or pushed horizontally. With this system, you can remove the fin if you ever go to a free state and have a pistol grip










Materials needed:
2mm thick aluminum plate
2 Cotter pins
1 pistol grip
cardboard or corrugated fiberboard
spray paint (optional)

tools needed:
scissors
Hacksaw
Bench clamp or vise
Emery cloth or sandpaper
Various files
Dremel or electric drill
cutting discs

Last edited by G lock; 02-10-2013 at 8:26 PM.. Reason: grammar
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Old 05-04-2011, 9:57 PM
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in a nutshell these are the steps to make the grip:

1. Take pistol grip and cut a slit slightly <2mm on the rear

2. Make a template from the corrugated paper

3. Transfer the template pattern to the aluminum plate

4. Cut pattern with hack saw

5. Round off edges using files

6. Cut a slit on the fin that is flush with the inside wall of the pistol grip


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7. drill holes for better clip retention

8. Sand/ Primer/ Paint (optional)

I apologize that I did not take pictures during the build, I made this grip a while back and this thread was more of an afterthought.

Last edited by G lock; 05-04-2011 at 10:33 PM..
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Old 05-04-2011, 10:18 PM
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This is what the finished product looks like:


Slit:

With cotter pin:

cotter pins fully inserted (used 2 for redundancy):

Last edited by G lock; 05-05-2011 at 12:27 AM..
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Old 05-04-2011, 11:28 PM
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AWESOME!
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Old 05-04-2011, 11:49 PM
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That is very cool. Where in the Central Valley are you? I would be interested in one...
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Old 05-05-2011, 12:16 AM
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I was thinking of producing a few but decided not to because the fit would vary (gap) depending on the stock used. I might be persuaded to make a few more if there is enough interest

Last edited by G lock; 02-10-2013 at 8:27 PM..
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Old 05-05-2011, 12:33 AM
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looks good!
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Old 05-05-2011, 1:02 AM
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Great Idea... Great Job!!!
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Old 05-05-2011, 8:47 AM
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very nice!!
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  #11  
Old 05-05-2011, 12:03 PM
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Thanks everyone! If I had to do it again I think i would of went with the arsenal pistol grip. IIRC its a little larger and the checkering is similar to the original bakelite grip.
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Old 05-05-2011, 1:42 PM
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Nice! Make one for an A2 stock/pistol grip and I'll bite
I'm in Modesto.
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Old 05-05-2011, 10:25 PM
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Very clean. Great job!

I'm thinking of using a clear plexi-glass type of material to make it less visible, at least at first glance, or from afar. Do you think it's doable?
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Old 05-06-2011, 12:10 AM
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Very nice, good way to say screw the law when you want too!
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Old 05-06-2011, 1:41 AM
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Quote:
Originally Posted by Standard View Post
Nice! Make one for an A2 stock/pistol grip and I'll bite
I'm in Modesto.
Thanks! unfortunately I dont know anyone that has an A2 stock in my area to fit one too
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Originally Posted by j_bauer View Post
Very clean. Great job!

I'm thinking of using a clear plexi-glass type of material to make it less visible, at least at first glance, or from afar. Do you think it's doable?
Thanks, I think its doable but there is the problem of stress fractures at the junction with plexi glass and the unsightly edges if you use a hacksaw. If you decided to go ahead and make one, use AR (abrasion resistant) polycarbonate (~3bucks @ tap plastics)


Quote:
Originally Posted by drider View Post
Very nice, good way to say screw the law when you want too!
Not advocating breaking any laws here,The intent is to be more of a convenience for if you ever decide to crossover into a free state and deactivate your BB
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Old 05-06-2011, 8:16 AM
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Looks nice. One of the nicer fins I have seen. It actually "flows" with the rifle!
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Old 05-06-2011, 9:28 AM
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good job! i love diy projects.
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  #18  
Old 05-08-2011, 5:02 AM
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Where can you buy 2mm aluminum plates from? Thanks.
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Old 05-08-2011, 11:17 AM
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Quote:
Originally Posted by bigthaiboy View Post
Where can you buy 2mm aluminum plates from? Thanks.
Go straight, make a left, then stop. Look to the right, you will see a hardware store. Go there.
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Old 05-08-2011, 7:10 PM
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Nice DIY project. Kudos!
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  #21  
Old 05-08-2011, 9:45 PM
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This method is way better imagine to have a AR type or AK type grip that by opening the bottom and pulling out a pin there goes the fin.

Last edited by WTSGDYBBR; 05-08-2011 at 10:03 PM..
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  #22  
Old 05-08-2011, 11:20 PM
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Does the fin wiggle? Just wondering.
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  #23  
Old 05-08-2011, 11:48 PM
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Quote:
Originally Posted by glockwise2000 View Post
Does the fin wiggle? Just wondering.
Not loosely, I fitted the fin such that it would stay in place because of pressure against the stock but just enough to be able to adjust it to either side. If you look closely the fin was moved to the left to accommodate the thumb side of my palm (im right handed). I also made the tolerances pretty small on the pistol grip slit to reduce any play.
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Old 05-08-2011, 11:52 PM
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Quote:
Originally Posted by G lock View Post
Not loosely, I fitted the fin such that it would stay in place because of pressure against the stock but just enough to be able to adjust it to either side. If you look closely the fin was moved to the left to accommodate the thumb side of my palm (im right handed). I also made the tolerances pretty small on the pistol grip slit to reduce any play.
Thanks for the info. Great DIY project.
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Old 05-09-2011, 2:58 AM
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Quote:
Originally Posted by BernardKaram View Post
Go straight, make a left, then stop. Look to the right, you will see a hardware store. Go there.
I have searched Home Depot and Lowes and could not find 2mm plate. Thought someone may have had a better suggestion, but I guess that's too much to ask.
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Old 05-09-2011, 11:26 PM
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Quote:
Originally Posted by bigthaiboy View Post
I have searched Home Depot and Lowes and could not find 2mm plate. Thought someone may have had a better suggestion, but I guess that's too much to ask.
Im not sure myself where to get some, someone just gave me the scrap aluminum
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