Some aftermarket takedown pins are also made from aluminum to save weight and may have extended ends allowing you to pull out the takedown pins with a tool or a loose bullet. In that case, you can get a pair of oversized takedown pins (~.248" in diameter), resulting in a better upper and lower receiver fit. Moreover, these pins can sometimes loosely fit and cause wobble between the receivers. 250 pinholes, and items used to push the pins occasionally slide off and can scratch your lower receiver. Typical production AR-15 pins are ~.245" in diameter and flat on the ends. Though takedown pins are a tiny part of the AR-15, upgrading them has certain advantages. The pins are meant to hold the upper and lower receiver together, and standard Mil-Spec AR-15 takedown pins are made from steel and are coated in a phosphate finish. How Many Takedown Pins Does an AR-15 Have?Īny standard AR-15 has two takedown pins, one in the front of the receiver, called a pivot pin, and one in the rear. This makes it very easy to open the receivers for a field strip or maintenance quickly. AR-15s have an upper and lower receiver, which are held together by takedown pins. One of the main reasons AR-15s are so popular is the ease of maintenance. The AR-15 is one of the most popular rifles in the US, and its military versions have been used worldwide by law enforcement and militaries. AR-10/LR-308 Buffers, Buffer Tubes, and Kits.AR-10 / LR-308 Complete Upper Receiver Assemblies.AR-15 Complete Upper Receiver Assemblies.I believe a polymer lower is to thick for these pins to work. They are quality made but did not work for me. Hoping I can get my money back, they are not acceptable. The groove for the detent is not machined in the correct location and the face that butts against the lower does not have the flat machined on it so it will fully bottom in the pivot hole of the lower. I opened the other set and it is the same. I bought a couple of sets of these for AR15 builds and when I went to install the first set, the front Pivot Pin will not work. I will definitely be buying more, they work fine. And I do like that they are a darker black than most, even if they seem a little softer as far as metal goes. So, my review earlier was wrong, I was wrong. I had 2 of the same pins and one wasn' t fitting right. Okay, we' ve all been swamped and in a hurry to get things done at one time or another. Order was placed on 9/24/20 and I got my order on 10/1/20 instead of what I ordered I got three sets of springs and detents,but no extended pins.I complained and was told they would ship out today.I' ll wait to see what comes if anything and get back to everyone latter. 2 extended pivot and take down pins with springs and detents.I would have gave a better review but the pins being shown are not what you get,they only come some what close.anyway the thing is that they fit and they work,so there we are. With springs and detents the price can' t be beat! These pins look and work better than the parts kit pins and make it so much easier to break down. I ended up using name brand detents and springs and the pins worked flawlessly. Some of the detents came with rust buildup, the springs are far too stiff. The ones that come with these are not fit to use. Take the time & purchase separate springs and detents.
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