AR Pistol Build

[edgehill]

Originally Posted by Gatorade

Are there light primer strikes? Check the hammer spring. I installed one backwards that resulted in light strikes.

There were no strikes at all. It looks like the bolt didn’t fall back into the battery. I think it didn’t have enough lube o. It and after I cycled the bolt a few times it was fine.

[Caleb]

Originally Posted by edgehill

There were no strikes at all. It looks like the bolt didn’t fall back into the battery. I think it didn’t have enough lube o. It and after I cycled the bolt a few times it was fine.

It’s possible but, you might of had a burr in the buffer tube that worked it’s way smooth after a couple of cycles. Either that or your buffer is too stiff. What brand buffer tube are you running?
Do you know if the inside of the tube is smooth or if it has machining marks? Those marks cause a lot of drag on the spring and buffer.

Remember, you have a short barrel so a lot of that gas is escaping out the front (hence muzzle flash). This plus the pistol length gas port don’t really push the bolt back with much force. You might have to get a lighter buffer spring.

Since you said you didn’t have any more malfunctions after those couple of ones, I’d say you will be fine and just shoot the crap out of it.


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