Retro Commando pistol (UPDATE)

[Bill Hollinger]

BTW, Problem child buffer and buffer spring above and genuine Colt SP1 carbine buffer and buffer spring below.

I don't have a scale to weigh the two buffers but what I can do is take this matching set and the BCG from the SP1 out with me the next time and give them a test go.

[Stevo]

I hate intermittent problems.

[Bill Hollinger]

Stevo, I think I will wait for the two weighted buffers to arrive and take it out again and test fire it. It acts as though the it may be right on the cusp of enough, not enough of a weighted buffer. We'll see. Thanks for the help and interest.

[Stevo]

I agree, it's almost right. The empty not coming off the bolt face, but the bolt going far enough rearward to start feeding another round is a real stumper. Especially since it's running such a high percentage correctly and ejecting them to a proper distance.

Was the gas tube new for the build? (I'm grasping here. )

[Bill Hollinger]

The gas tube was from a CMMG I turned into an Adams Arms piston so it is used but was in really goon condition.

[Stevo]

And the gas key is tight and staked?

[Bill Hollinger]

Yes it is and aligns perfect with the gas tube.

[Stevo]

Well, that exhausts my AR troubleshooting tool kit.

[vintage hunter]

ejector issues?

[Bill Hollinger]

The spent casing is being pulled from the chamber but is not ejecting every time causing the false double feed with the live round trying to feed while the spent casing is still in the bolt face. On another forum a fella suggested this fix: http://www.bravocompanyusa.com/BCM-E...%20upgrade.htm I'm not sure I understand how this will help???

Before I do anything I'm going to swap a known working BCG and see what happens then. Then I will try the different weight buffers when they get here. Thanks for all the replies and suggestions. I will keep you posted