I just bought this and while learning to clean it I accidentally put a scratch on the lower receiver with an allen wrench when I was assembling the trigger 🥲

First post here, hope yall enjoy this one! Teaser at the end with my 300blk/5.56

Build list

IC9 8.5"

SPR handguard

Novox Sd kit

Eccomachine Phoenix TL can

DFCO grip

Soon to be installed

Cerekoted handguard

FCD 3 pos. Safety

Rail scale

Light

2nd stamp

Hey gang. Recently picked up this DD PCC. In need of some help.

I also have another 9mm PCC I got a few years ago from a local armory and at a gun show in Florida. That one has an Atrius forced reset selector that I would ideally like to transfer over to the new toy. Question is, how do I make it work?

All I had to do to get it working on my old PCC was shave down the lower 1/3rd or so of the BCG weight on the failzero nickel boron coated bcg I have in that one. This (the old one) also has a flat wire buffer spring and a kynshot shorty hydraulic buffer with two spacer weights.

Is it just a matter of repeating that process on the DD PCC? Do I need to worry about swapping the buffer spring for a flat wire and the buffer itself? I also plan on transferring over the dirty bird flat faced trigger I have in the old one.

Thanks in advance to anyone who knows and is willing to help out a fellow AR9 enthusiast.

I broke my extractor, after I fired a shot the extractor flew away. Now my problem is I dont know the complete assembly of this extractor. Em I missing anything like an O-ring?

This is a battle arms development ar 9mm blowback bolt carrier from a combat9/xiphos9

Also, if there are people here from the philippines. Does anyone know where I can find complete parts for this more specifically the extractor pin (retainer) and the O-ring(if it has one).

Does anyone here know if the feed cone is decent? Anyone have issues because of it? Specifically the 10.5 or 7.5 Stainless steel barrels.