Need help with AR build

[wpage]

Dremel the end down... Vaseline!

[Munny$hot]

Use a long roll pin punch, tape a thin piece of cardboard on the side of he receiver, or use a brass drift

[Baeleron]

Strange, my very first try came out perfect. Masking tape on the lower, and really careful tapping with a small hammer. It didn't seem very hard, and I didn't think anything of it until seeing threads like this. Taped vice grips work really well for the trigger guard pin, better than a hammer.

[Ethon1]

There are various ways and quite a number of tools now available to install the bolt catch. My method isn't necessarily the correct way, but I hope it helps. The tools I've found that aided in the installation of the bolt catch are: a tiny hammer, a magnet and chop sticks. As Baeleron posted, use the smallest hammer you can find. Anything less than 2oz will work - such as jeweler's hammer or smith's hammer. It doesn't take much to drive the slotted spring pin/roll pin. You'll be surprised what little effort is required by the following steps:

1. Check and deburr the pin holes.
2. Apply any type of tape onto the receiver in order to ease your mind when handling the tiny hammer.
3. Use a magnet, such as a telescoping magnet tool, to hold the pin with the slot facing the receiver.
4. Apply a quick tap to set and compress the pin into place.
5. Properly install and align the spring, detent and bolt catch.
6. Finish by using a small wooden dowel or even a bamboo chopstick.

Avoid crimping or altering the ends of the pins as it defeats the purpose of the slotted spring pin (aka roll pin). I've found the roll pin punches with dimples somewhat hinders the compression of the pin and find them unnecessary.

In regards to the trigger guard, same applies with the exception of a light coat of lube. I believe there's a little more resistance due to the fact that there's less surface area compressing the pin.

[Nathan Krynn]

Arbor press with a jig to hold the lower.

[wpage]

Check U tube for details from other journeymen...

[kenjimatic]

Once I started using vice grips and lots of tape it got super easy.

Sent from my HTC One using Tapatalk