Remove the bar that the lever presses on and then remove the plunger (black one in the photo). Put the stock in the position you want, insert new plunger piece and then pin it with the stock roll pin. I see no reason his wouldn't be legal seeing as the actual adjustable components have now been removed.
Full Answer
What are the best pins for a polymer rifle stock?
Roll Pins ($13): I bought a monster pack since I’m always losing them in AR builds. This one will definitely have several 1/8″ roll pins. Epoxy ($6): I went with a plastic bonding epoxy since you want it to stay to the polymer rifle stock. I’ll be pinning my Bravo B5 stock ($60) but this should translate to any adjustable polymer stock.
Can you pin a collapsible stock to the assault weapons ban?
Learn how to easily pin a collapsible stock to satisfy the Assault Weapons Ban (AWB) criteria with a drill, roll pin, and epoxy. Note the disclaimer that this is for educational purposes only and that you should double-check all laws surrounding this.
What size action spring do I need for my AR 15?
Commonly known as a Buffer Spring, the Action Spring is an often neglected and tremendously important part in maintaining a properly cycling AR-15. A Carbine Action Spring, like we’re using with this build should be between 10 1/16 in. and 11 1/4 in. If it falls outside of these parameters it should be replaced, this is it’s go/no-go measurement.
How to drill an AR-15 rifle scope?
First make sure that you have your stock in the correct length. So if you have any optics ( Best Scopes & Optics for the AR-15 ), make sure you have proper eye relief and length of pull. Get a matching set of drill bit and roll pin.
Buttstock Installation
Before we get into the actual steps of installation, let’s talk a bit about the selections we’ve made on parts here and why we recommend them.
Assembly Instructions
Thread the Castle Nut onto the Receiver Extension Tube with the Cuts facing aft.
Series Navigation
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Discussion
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Tools Needed
Drill & Bits: Hopefully you have something at home or can borrow someones since you’ll only need it for a second. I went with a 1/8″ drill bit but as long as you can match up the bit to the roll pin, you’re fine.
Pinning a Collapsible Stock
I’ll be pinning my Bravo B5 stock ($60) but this should translate to any adjustable polymer stock. I like the B5 since it’s really light and has that angle that gives me a really good cheekweld.
Alternatives to Pinning Your Stock
Something new has come along…the Stock Lok ($35). It swaps out the adjusting pin in your stock so that it becomes fixed. Perfect if you don’t want to pin after reading this tutorial.
Conclusion
Looking for more help in building a featureless rifle or upgrading your AR-15? Check out our AR-15 Resources and How to Build a Featureless AR-15.
Buttstock Installation
Parts Needed
Tools Needed
Assembly Instructions
- Thread the Castle Nut onto the Receiver Extension Tube with the Cuts facing aft.
- Place the Receiver End Plate, in this case a SLAP plate, on the Receiver Extension with the raised area facing forward.
- Thread the Receiver Extension Tube through the back of the Lower Receiver, stop just before the Buffer Retainer hole.
- Thread the Castle Nut onto the Receiver Extension Tube with the Cuts facing aft.
- Place the Receiver End Plate, in this case a SLAP plate, on the Receiver Extension with the raised area facing forward.
- Thread the Receiver Extension Tube through the back of the Lower Receiver, stop just before the Buffer Retainer hole.
- Insert the Buffer Retainer Spring and Buffer Retainer into the hole and depress the corner of the retainer with your index finger.
Tools Needed
- Drill & Bits: Hopefully you have something at home or can borrow someones since you’ll only need it for a second. I went with a 1/8″ drill bit but as long as you can match up the bit to the roll p...
- Roll Pins($13): I bought a monster pack since I’m always losing them in AR builds. This one will definitely have several 1/8″ roll pins.
- Drill & Bits: Hopefully you have something at home or can borrow someones since you’ll only need it for a second. I went with a 1/8″ drill bit but as long as you can match up the bit to the roll p...
- Roll Pins($13): I bought a monster pack since I’m always losing them in AR builds. This one will definitely have several 1/8″ roll pins.
- Epoxy($6): I went with a plastic bonding epoxy since you want it to stay to the polymer rifle stock.
Pinning A Collapsible Stock
- I’ll be pinning my Bravo B5 stock($60) but this should translate to any adjustable polymer stock. I like the B5 since it’s really light and has that angle that gives me a really good cheekweld. First make sure that you have your stock in the correct length. So if you have any optics (Best Scopes & Optics for the AR-15), make sure you have proper ey...
Alternatives to Pinning Your Stock
- Something new has come along…the Stock Lok($35). It swaps out the adjusting pin in your stock so that it becomes fixed. Perfect if you don’t want to pin after reading this tutorial. An even easier method is with Strike Industries Stock Stopwhich is a piece of rubber that stops your standard buttstock from moving. Genius and super cheap at under $10.
Conclusion
- Looking for more help in building a featureless rifle or upgrading your AR-15? Check out our AR-15 Resources and How to Build a Featureless AR-15.