To mount the stock, you’ll need to make sure you have the receiver extension (buffer) tube, buffer, recoil spring, receiver plate and locking ring installed. Read on to make sure that these parts, sometimes known as the mounting kit, are compatible with your butt stock of choice. What Type of Stock?
Full Answer
Can I change the stock on my AR?
4:376:28How to Change the Stock and Grip on an AR-15! (Super Easy!) - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo now we are going to change the stocks the stocks really easy so you just press your release. PullMoreSo now we are going to change the stocks the stocks really easy so you just press your release. Pull all the way down on the this part and it should just slide right. Off.
Can you put a collapsible stock on AR 15?
0:5710:36Are AR-15 Folding Stock Adapters The Future? - YouTubeYouTubeStart of suggested clipEnd of suggested clipIt would be a stock adapter or just a regular size rifle it'd be a stock adapter.MoreIt would be a stock adapter or just a regular size rifle it'd be a stock adapter.
Can you add a stock to a AR 15 pistol?
An AR pistol cannot use a standard rifle stock. You must use a pistol stabilizing brace.
What is the difference between a brace and a stock?
Historically, the legal difference between a pistol brace and rifle stock has been one of intent; a brace assists single-handed firing, while a stock reveals an intent to shoulder.
What is the point of a folding stock?
A collapsible (or telescoping) stock makes the weapon shorter and more compact for storage, carrying and concealment, and can be deployed just before shooting for better control.
What is the shortest barrel allowed on an AR-15?
16” Barrel This length of barrel is known for its overall effectiveness. It should be kept in mind that legally, the shortest barrel you can get for an AR is 16″. You might be able to get away with a 14.5″ barrel if you pin a muzzle device on it to make the barrel 16″.
Do you need a tax stamp for an AR-15 pistol?
It requires a citizen to fill out ATF Form 4 and pay a $200 NFA Tax Stamp. An AR-15 pistol allows the shooter to have the size, weight and maneuverability of an SBR but avoids the NFA regulations. An AR pistol is fired like a typical handgun.
Can you convert an AR rifle to an SBR?
Q: Can I convert a rifle I own or build into an SBR? A: Yes. The process is like converting a pistol. Except in this case, you get to keep your buttstock but you can't install a barrel shorter than 16" until your application is approved.
How to stake a castle nut?
To stake the Castle Nut, take your Center Punch and drive some of the material from the Receiver End Plate into the pre-cut areas in the Castle Nut. Optimally you want at least two areas staked, but when using some end plates you may have just the top area to stake.
What is a receiver extension?
Commonly referred to as the buffer tube, Receiver Extensions are available in a Mil-Spec or Commercial version. The differences are typically that the Commercial tube is made from extruded aluminum rather than forged aluminum like the stronger Mil-Spec tube. The two differ in size as well and you’ll find more aftermarket stocks built for the Mil-Spec tube.

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.