I've cleaned my BCGs once after about 2000 rounds in an ultra sonic and it was really just to get to parts of the BCG I couldn't get to; gas key hole and so on. It did the job well. I did however have have my gas key screws come loose after it, but that really just boiled down to crappy staking. I'll just note I do clean my BCG after every practice session and SR match with Boretech. My bolts are nitride.
For my suppressors I clean them in my ultra sonic cleaner with simple green mixed in.
For my suppressors I clean them in my ultra sonic cleaner with simple green mixed in.
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