Aero factory built upper and lower.

DS arms sand-cut DLC (diamond like coating) bcg. 

I believe the lower parts kit came from spike or mega and set up for qd attachments. 

Pretty good ALG trigger and extended latch on the charginghandle. 

If you want to try it out, we can meet at OGC.

 
DL and PTC or PTP or REDACTED, we split the cost

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